Mean Wind Pressure Coefficients Research Articles

Experimental and numerical study on the local crosswind environment of a wide streamlined bridge deck equipped with wind barriers at different angles of attack

In this study, the effects of wind barriers on the crosswind environment of vehicle safety on a long-span bridge with a streamlined bridge deck were investigated at different angles of attack (AOA). The profiles of the mean and the root mean square (RMS) of the wind pressure coefficients above different traffic lanes were obtained through synchronous pressure measurements. The mean pressure fields around the bridge decks were investigated by computational fluid dynamics (CFD) simulations. The crosswind environment of vehicle safety between the deck with railings and the deck with wind barriers was compared and analyzed in detail at different AOA. The results showed that the wind barriers produce a thicker separation shear layer above the bridge deck and result in a larger negative pressure region in comparison with the case with railings. This leads to a notable reduction in the mean wind pressure coefficients above the deck. The increase in the AOA enhances the above-mentioned reduction effect. It was also found that the wind barriers significantly increase the RMS of the wind pressure coefficients above the deck compared with the railings. The increase in the AOA inhibits this enhancement effect. The results of the equivalent mean pressure coefficients show that the wind barriers reduce the vehicle sideslipping risk more effectively than the vehicle overturning risk. It was also found that the effect of the wind barriers on the reduction of the overturning risk is more sensitive to the change in AOA than the effect on the reduction of the vehicle sideslipping risk.

Experimental study on wind load characteristics of rooftop canopies of low and medium rise buildings

Rooftop canopy is popular in buildings, and it is prone to wind induced damage due to its light weight and slender configuration. However, investigation on the wind load on this kind of structure has not been conducted, leading to a wind resistant design without a firm basis. This study measures the wind pressure acting on the rooftop canopy considering 4 different underneath building heights, whose prototype vary from 6m to 24m. The mean, fluctuating, and extreme wind pressure coefficients are examined. The correlation coefficients between the pressures at different positions are also checked. Results show that the underneath building height has significant effect on the wind load coefficients of the canopy. The correlation between wind pressures on both the upper and lower surfaces decreases gradually with the increase of the building height. The most unfavorable height of building found in this study is 12m, with the largest uplift net pressure coefficient of the canopy close to −7.0. Comparison with the design values for claddings of free roof in ASCE 7–22 shows that the rooftop canopy can practically have much larger uplift (negative) net pressure in the edge region.

Influence of wind pressure patterns on the buckling resistance of hyperboloid steel cooling towers

When multiple cooling towers are built in a power plant, the wind load acting on the tower shell is asymmetrical owing to interference between the cooling towers. However, studies on the buckling resistance of steel cooling towers under asymmetrical wind loads are scarce. In this study, a finite element model of a 160-m-high hyperboloid single-layer reticulated-shell steel cooling tower was established. Nonlinear buckling analyses of the cooling tower were performed by considering 243 symmetrical and 216 asymmetrical wind load patterns to study the influence of the characteristic parameters of the mean wind pressure coefficient (Cp) on the buckling resistance of the cooling tower. The results showed that the most adverse wind load pattern was the distribution with the largest stagnation pressure on the windward side, largest wind suction on the crosswind side, and smallest wind suction on the leeward side. The symmetry of the wind load was not a key factor affecting the buckling resistance of a steel cooling tower. In addition, the characteristic values of Cp have a greater influence on the buckling resistance than the characteristic angles. The effect of the stagnation pressure on the buckling resistance was approximately three times that of the largest wind suction on the crosswind side.

Aerodynamic characteristics of a streamlined box girder under shear flow considering oncoming turbulence

Non-synoptic winds, such as typhoons and downbursts, are frequently characterized by shear flow associated with turbulence, which affects the aerodynamic performance of long-span bridges. To reveal the aerodynamic characteristics of streamlined box girders under non-synoptic winds, multi-fan wind tunnel (MFWT) tests were used to investigate the aerodynamic effect around a streamlined box girder considering the action of shear flow with different velocity gradients, turbulence intensities, and integral scales. In the MFWT tests, the high shear rate and large turbulence intensity were observed to magnify the mean wind pressure coefficient, whereas the variation in the turbulence integral scale had a slight effect on the mean wind pressure coefficient distribution. An increase in the shear rate was observed to be beneficial in reducing the drag and moment coefficients, as well as in increasing the lift coefficient. The empirical aerodynamic prediction relationships revealed that the influence of turbulence intensity on the aerodynamic coefficient is non-linear, whereas that of the turbulence integral scale and shear rate on the aerodynamic coefficient is linear. Additionally, the large eddy simulation (LES) method was used to study the vortex-shedding behaviors and aerodynamic spectrum characteristics of the streamlined box girder under shear flow. The LES results showed that larger shear parameters amplify the amplitudes of high-frequency aerodynamic forces. The vortex frequently begins from the low-velocity side of the streamlined box girder, which induces a suction effect on the low-velocity side that is greater than that on the high-velocity side.

Mechanism analysis on wake-induced vibration of parallel hangers near a long-span suspension bridge tower

To reproduce the vibration phenomenon and explore the mechanism of parallel hangers near a suspension bridge tower based on the practical engineering, a pair of hangers in the wake of the bridge tower were taken as the research object. The influences of different wind yaw angles on the flow patterns of the bridge tower and aerodynamic characteristics of parallel hangers were investigated using the computational fluid dynamics (CFD) method. Then, based on the amplitude spectrum results, the relationship between the aerodynamic interference intensities of the tower wake and the displacements of parallel hangers were quantitatively described. Moreover, the coherence between the bridge tower and the parallel hangers were studied. Finally, based on the surface pressure distributions, energy input analysis, and wind speed characteristics, the vibration mechanism of parallel hangers near the bridge tower were explored. The results show that when the wind yaw angle is in the range of 0° ∼ −30°, the tower wake and the vortex shedding from the hangers jointly affect the aerodynamic characteristics of the hangers, which leads to the vibration displacements and movement tracks are observed as a sawtooth shape with multiple frequencies and synchronous skewed ellipses, respectively. The aerodynamic interference intensities of the bridge tower are positively correlated with the displacements of the hangers, and the peak amplitude at the wind yaw angle of −30° with strong aerodynamic interference is 35 mm, which is about 9 times that at the wind yaw angles of ±60° with weak aerodynamic interference. Moreover, at the wind yaw angles with strong aerodynamic interference, the mean wind pressure coefficients of the parallel hangers tend to be negative and their root mean square (RMS) values of wind pressure coefficient exhibit an overall upward trend compared with those at wind yaw angles with weak aerodynamic interference. Based on the analysis of energy input and wind speed characteristics, it is found that the low-frequency vortex shedding from the tower wake is the internal factor that continuously maintain the large vibrations of the parallel hangers.

Numerical Investigations of Wind Impacts on Chinese Ancient Architectural Roof Surfaces with Ridges and Semi-Cylindrical Tiles

ABSTRACT This study aims to evaluate the impacts of roof ridges and semi-cylindrical tiles on the wind loading on traditional single-eave hip roofs. To the best of the authors’ knowledge, the semi-cylindrical tiles have been considered in the simulation of ancient Chinese architecture for the first time. Several roof models with various ridges and semi-cylindrical tiles are simulated by solving the Reynolds-averaged Navier-Stokes equations (RANS) using the computational fluid dynamics (CFD) technique. The results reveal that the addition of roof ridges and semi-cylindrical tiles has a considerable structural protection effect, which can significantly reduce the suctions, as well as the turbulence fluctuation, on both the windward and leeward sides: the average of negative mean wind pressure coefficients is reduced by 33% on the leeward surface, and approximately 48% on the windward surface one. When the number of protruding ridges and semi-cylindrical tiles increases (decreasing the diameter of them by 40%), the average of area mean wind pressure coefficient for all the wind directions decreases by about 30% on the windward side and about 50% on the leeward side. The average of maximum spatial wind pressure coefficient decreases by about 25% on the windward side and about 40% on the leeward side.

Physics-informed few-shot learning for wind pressure prediction of low-rise buildings

This research proposes a physics-informed few-shot learning model to predict the wind pressures on full-scale specimens based on scaled wind tunnel experiments. Existing machine learning approaches in the wind engineering domain are incapable of accurately extrapolating the prediction from scaled data to full-scale data. The model presented in this research, on the other hand, is capable of extrapolating prediction from large-scale or small-scale models to full-scale measurements. The proposed ML model combines a few-shot learning model with the existing physical knowledges in the design standards related to the zonal information. This physical information helps in clustering the few-shot learning model and improves prediction performance. Using the proposed techniques, the scaling issue observed in wind tunnel tests can be partially resolved. A low mean-squared error, mean absolute error, and a high coefficient of determination were observed when predicting the mean and standard deviation wind pressure coefficients of the full-scale dataset. In addition, the benefit of incorporating physical knowledge is verified by comparing the results with a baseline few-shot learning model. This method is the first of its type as it is the first time to extrapolate in wind performance prediction by combining prior physical knowledge with a few-shot learning model in the field of wind engineering. With the benefit of the few-shot learning model, only a low-resolution of the measuring tap configuration is required, and the reliance on physical wind tunnel experiments can be reduced. The physics-informed few-shot learning model is an efficient, robust, and accurate alternate solution to predicting wind pressures on full-scale structures based on various modeled scale experiments.

Experimental Investigation of the Parapet Effect on the Wind Load of Roof-Mounted Solar Arrays

A wind tunnel test was conducted to investigate the effects of parapets on the aerodynamic wind loads of roof-mounted solar arrays. The distribution of the mean wind pressure coefficient and the extreme wind pressure coefficient in the solar arrays were discussed in detail, and the results were compared with some national standards. Results show that the mean and extreme values of the wind pressure coefficient are larger at oblique wind angles. The presence of the parapet can reduce the mean and extreme area-averaged net pressure coefficients in some areas of the solar arrays, and both the most critical positive and negative shape factors reduce at the corner and outer rows while less change occurs at the inner zones. The experimental shape factors are much smaller compared to the values calculated by the standards. The guidelines for the design of wind pressure on roof-mounted solar arrays are very conservative, and more research is needed to make the standards applicable and complete.

A New Research Scheme for Full-Scale/Model Test Comparisons to Validate the Traditional Wind Tunnel Pressure Measurement Technique

A new research scheme for a full-scale/model test comparison is proposed for effectively validating the wind tunnel pressure measurement technique in this article. With the new research scheme and using quantifiable data, future full-scale/model test comparisons are expected to reasonably disclose the main problem with the traditional atmospheric boundary layer wind tunnel pressure measurement technique with regard to the Reynolds number (Re) effects, the aero-elastic effects and the flow characteristic effects. Based on the engineering background of the Peng-cheng cooling tower, it was quantified by using the new research scheme that the average relative errors of the mean wind pressure coefficients are 52.39%, 1.87% and 35.91% for the Re effects, the aero-elastic effects and the flow characteristic effects, respectively. In view of the fluctuating wind pressure coefficients, the average relative errors are 97.58%, 21.14% and 20.20% for the Re effects, the aero-elastic effects and the flow characteristic effects, respectively. These suggest that Re effects are extremely significant for pressure measurement model tests of circular cylindrical structures, and flow characteristic effects are noticeable too. They should be mitigated using effective approaches, i.e., increasing the model surface roughness and placing the actively controlled devices at the beginning of the wind tunnel’s working section, respectively. Additionally, the key field measurement technique adopted (i.e., the calculation of the reference static pressure) and details of manufacturing the aero-elastic pressure measurement model for the present study are also expounded in the article for reference.

Study of the wind-pressure distribution of flat-roof parabolic condensers based on wind-tunnel tests

Abstract The structure of parabolic condensers makes them susceptible to wind load because of their thin and large windward mirrors. In this paper, the wind pressure on a model of a condenser mirror (1:35) on multistorey flat roofs is analysed via pressure measurement in a wind tunnel. The mean wind-pressure distribution law of flat-roof condenser mirrors (including the change law with working conditions and the maximum distribution characteristics) and the distribution law of fluctuating and extreme wind pressure are obtained. Furthermore, by comparison with the ground-based condenser distribution law, similarities and differences between the two are obtained. Research results show that the wind-pressure distribution law of flat-roof parabolic condenser mirrors is the same as those on the ground, but the mean wind-pressure coefficient (absolute value) is generally ~30% smaller. Furthermore, the maximum effect is generally located at the windward mirror edge and the mirror is more susceptible to wind pressure in wind directions of 30° and 135°–150°. The results of this study can provide a theoretical reference for wind-resistant structure design and multistorey flat-roof condenser-related research.

Prediction of mean and RMS wind pressure coefficients for low-rise buildings using deep neural networks

Although the problems of wind pressure prediction on roofs have been studied extensively, the prediction accuracy is still unsatisfactory owing to the limited capacity of shallow learning of artificial neural networks (ANNs), especially in the areas characterized by flow separation. Moreover, the literatures have only conducted error analysis on part of the predicted taps instead of all taps, and have not made precision comparison with related studies. In this paper, the model of deep neural networks (DNNs) with the ability of deep learning are built to predict the mean and root-mean-square (RMS) wind pressure coefficients on low-rise buildings. For quantitatively comparing the presented results with those from the literature, the same buildings from the NIST-UWO database as studied by the literature are also predicted in this work. In order to improve the DNNs model for predicting the corner zone with higher pressure gradients, a nested DNNs model is further proposed by returning the mean coefficients predicted by one DNNs model as the input of another DNNs model for the RMS coefficients. The prediction results of the DNNs model are also compared with those from the methods of random forest (RF) and general regression neural network (GRNN). The study shows that the DNNs model obviously enhances the prediction accuracy around the roof ridge and the corner bay in comparison with the ANNs model. For the mean or RMS coefficients of all the taps on the whole roof, the correlation coefficient between predicted and experimental results exceeds 0.997, the mean-square-error (MSE) is less than 5 %, and the relative errors of>95 % predicted samples are lower than 10 %. The prediction accuracy in the corner zone is further improved by the nested network where the samples within errors less than 5 % are evidently increased and the errors > 20 % disappear. Also, the prediction results from the DNNs model are apparently better than those from RF and GRNN. This study could provide a benchmark for future studies on the prediction of mean or RMS wind pressure coefficients on the roofs.

Numerical analysis of wind-induced natural ventilation for an isolated cubic room with two openings under small mean wind pressure difference

Wind-induced natural ventilation through openings with small wind pressure differences was examined using large eddy simulation (LES) modelling. This study focused on cases in which the ventilation rate is predicted using a standard Orifice equation. The purpose of this study was to clarify how the ventilation rate is underestimated in such cases for both single-sided and double-sided openings, and to clarify the difference between the effective ventilation rate (purging flow rate, PFR) and bulk airflow rate (AFR), which have not been sufficiently and systematically understood. A simple cubic-room model with two openings was analysed using LES by varying the opening position after validation, and the ventilation rate, velocity field, and wind pressure coefficient were compared with experimental results. The PFR was determined by tracing particles, and the AFR was obtained based on the instantaneous velocity over the openings. The AFR predicted by the Orifice equation was underestimated when the difference in the mean wind pressure coefficient (ΔCp‾) was less than 0.1. The main feature of this study was to show the ventilation effectiveness defined by the PFR divided by AFR, which was approximately 70–80%, 60%, and 90% for the double-sided openings, single-sided openings on the lateral side, and windward and leeward sides, respectively. Another feature was to propose a method for estimating the AFR reflecting two key phenomena, namely pulsating flow and eddy penetration. In addition, a simple equation considering the standard deviation of wind pressure coefficient difference (σΔCp), and external local velocity around an opening (Vvic) was obtained.

Study of wind loads on rectangular plan tall building under interference condition

The change in distribution of wind pressure due to alteration of wind flow pattern caused by the existence of an interfering building is explored in this study on a principal tall building having cross-section of rectangular shape. Interfering building having same cross-sectional shape as the principal building but a variation in height is placed in-front of the principal building, with across-wind lengths of two buildings being in-line with each other. Keeping the principal building fixed in position, the spacing between two buildings is varied by changing the position of interfering building, so as to understand the effect of spacing and height variation upon the wind loads and pressures. Two independent type of measurements are undertaken for varying interfering building height: (1). Force Measurement (2). Pressure Measurement. For purpose of validation, the results obtained from two independent measurements mentioned are compared later. The results obtained from force measurements are expressed in the form of two-dimensional X-Y plots, while that for pressure measurement are depicted in the form of mean and RMS wind pressure coefficient (CP and CP') contour plots on all vertical faces of the principal building. Force measurement results show that the interference effect subsides as the interfering building height is reduced and spacing is increased. However, from pressure contours it is evident that when the interfering building is close to principal building pressure force on the windward face reduces while the suction on the leeward face increases with the reduction in interfering building height. Negative drag is also observed for few of the cases.

Wind tunnel experiment on rectangular-shaped arch-supported membrane structures

This paper highlights the investigation of wind tunnel experiment on rectangular-shaped arch-supported membrane structures. Series of wind tunnel experiments are carried out to record the time history of pressure under different wind directions for both enclosed and open structures. In order to present the comparative analysis, contours and graphs for mean and peak wind pressure coefficients are plotted considering different parameters such as rise-span ratio, wind direction, and boundary wall. Study shows that under oblique wind direction, strong flow separation occurs in the windward arch edge which creates larger suction pressure coefficient on the immediate downside of windward arch. Based on area and intensity of negative pressure coefficient, 45⁰ is the most critical wind direction. Influence of rise-span ratio is noticeable. When rise-span ratio increases from 0.2 to 0.35, pressure coefficient increases significantly, however when rise-span ratio further increases to 0.5, increase in pressure coefficient is marginal. Moreover, in order to ease the engineering design application, roof surface is divided into different zones and assigned with mean and peak wind pressure coefficient.

Wind-Induced Response and Equivalent Static Wind Loads on Waiting Hall Building of Regular Railway Stations

This paper investigates the influence of the canopy span, canopy opening width and waiting hall building height on the loads and equivalent static wind loads (ESWL) of the waiting hall building. The results show both the mean and standard deviation wind pressure coefficients at the roof of waiting hall buildings are affected by the interference effects caused by the upstream canopies. The wind-induced response of the waiting hall building roof is usually dominated by the first vibration mode, 0∘, 90∘ and 180∘ are the three adverse wind directions. Based on the wind tunnel tests, parameters of the fitted spectrum of the first modal generalized wind pressure for waiting hall buildings are obtained at the adverse wind directions. The semi-analytical expressions of equivalent static wind loads (ESWL) on waiting hall building roofs are derived using the first modal inertial force as a function of the structural reduced frequency. The good accuracy of the proposed ESWL is verified by comparing the nodal displacements and member stresses calculated by the proposed method to the actual dynamic peak results.

Analysis of Large Vehicle Interference on Transiting Test for Measuring Building Wind Pressure Coefficient

As a new method for structural wind engineering research, the transiting test has good application prospects. However, in the road environment, the experimental results will inevitably be influenced by other vehicles (especially larger vehicles). In this paper, a large vehicle was set as an interference vehicle to drive in specific conditions, and the symmetrical CAARC standard model was used to investigate the large vehicle’s interference on the transiting test method for measuring building wind pressure coefficient. The results indicate that the wind pressure coefficient time history will appear as a clear up and down undulation phenomenon during the overtaking interference period instead of the single convex phenomenon. The mean wind pressure coefficient in the negative pressure area during the overtaking interference period is lower than that in the no-interference situation. The overtaking interference features are clear and easy to distinguish, and the interference duration is long (more than 6 s). In contrast, the overtaking interference when the test vehicle is overtaken is greater. For following driving, the wake of the large vehicle no longer interferes with the transiting test results after the vehicle spacing exceeds 70 m.

Experimental Study of the Aerodynamic Characteristics of a Suspended Monorail Vehicle-Bridge System Under Crosswinds

Using wind tunnel tests, the aerodynamic characteristics of a suspended monorail transport (SMT) are systematically investigated under crosswinds for the first time. Two practical vehicle–bridge combination forms (single-line and double-line) are considered. As a contrast, single vehicle and bridge models are also studied to further reveal their aerodynamic characteristics. The mean and root mean square (RMS) wind pressure coefficients, aerodynamic coefficients and power spectrum density (PSD) distributions are used to numerically investigate the effects. The paper confirms that: (1) the mean wind pressure coefficients of the single vehicle and bridge models are close to unity at the center point of the windward side and gradually decrease from the center point to both sides. The maximum value of the RMS wind pressure coefficients mainly occurs at the top or bottom surface of the testing models due to the effect of vortex shedding; (2) the aerodynamic coefficients and the mean and RMS wind pressure coefficients are significantly increased for both the vehicle and bridge models when considering the aerodynamic coupling effects; (3) the aerodynamic characteristics of the bridge can be significantly affected by the location of the running vehicle, but the fluid flow can maintain relative stability during the meeting of the two vehicles.

Effect of Interference Between Twin Tall Buildings with Recessed Corners on Wind-Induced Pressure

This paper investigates the results of wind tunnel model testing on pressure distribution and proximity effects between twin tall buildings with large recessed corners in an open circuit boundary layer wind tunnel. Experiments were carried out for isolated and for full, half and no blockage interference conditions. Three interference conditions were created by placing the building of identical shape and size at different locations on the windward side of the principal building under consideration. Based on the experimental results, mean and Root Mean Square (RMS) wind pressure coefficients and interference factors are presented and discussed for all cases. Mean wind pressure coefficients and interference factors at all faces of the building model are plotted in the form of contours and also plotted along the height of the building at all faces. Pressure coefficients and interference factors for three interference conditions are also compared with the results of isolated condition to bestow comprehensive evaluation of the effects of the interference on changing of wind loads. Results show that pressure coefficients variation greatly depends on the position of the interfering building. Oblique configuration produces more severe interference effects on windward surfaces. The re-entrant corners present in the model also affect the pressure distribution because of flow stagnation in these corners. The interference effects in no blockage condition are significant and unfavorable at windward faces near recessed corners towards the interfering building, where the mean interference factor of more than 13 is observed.

Wind-structure interaction analysis of empty cylindrical silos for various slenderness ratio

Wind is the flow of air within the earth’s atmosphere, which affects any structure greatly. Studies on the effect of wind loading on shell structures is an important field of structural research. Many shell structures, such as, chimneys, silos, tanks etc. are an integral part of the advancement of the industry and agriculture. Such shell structures are vulnerable against aerodynamic excitation and can be subjected to structural failure due to vortex-induced vibration, ovalling, buckling, rupture, over-turning etc. The present study focuses on the static fluid–structure interaction analysis to assess the wind pressure and wind-induced deformation of cylindrical silo shells. Cylindrical silos are a type of shell structure for storing granular materials, such as grains, wheat, cement, coal, fly-ash etc. Cylindrical silos very much susceptible to radial deformation and buckling failure under wind loading in empty state. In the present study the authors have conducted the wind-structure interaction studies on intermediate to tall (slenderness ratio range: 1.5 to 4.0) cylindrical silo shells for terrain category 2, as per IS-875: part 3, 2015. The silos are flat topped with uniform thickness and fixed at the base, free at the top. The logarithmic law is used to simulate wind velocity profile. The circumferential mean wind pressure coefficient distribution for each silo, is calculated and compared with Indian standard. This study is conducted for smooth flow with very low turbulence intensity for simplicity. This study exhibits that, with the increase in slenderness ratio from 1.5 to 4.0, the magnitude of negative pressure coefficients decreases, however no significant increase can be seen for positive pressure coefficients. The sway of the silos increases with the increment in slenderness ratio. The radial deformation is dominant in the intermediate portion and the nature of deformation is typical for each silo. Based on the nature of radial deformation the critical locations can be identified, which need to be strengthened to resist wind-induced deformation. It is also seen that the presence of flat roof provides significant strengthening at the top of the silos against wind-induced radial deformation.

Numerical Study of Wind induced Pressures on Irregular Plan Shapes

Purpose: This paper presents the numerical examination of wind pressure distributions on irregular plan shape building models over wind incidence angles of 0° and 180°. The purpose of this study is to investigate the effect of irregular building form, projection ratios, distances from the re-entrant corner, the building height and wind incidence angles on the wind flow and wind pressure distributions at all surfaces of the buildings.Design/Methodology/Approach: Two L-shaped and two T-shaped building models having the same plan area and height but having different projections in plan were analyzed by the application of Computational Fluid Dynamics (CFD) package of ANSYS. With this purpose, wind pressure distributions on and around various irregular plan shaped buildings are analysed for the same height level.Findings: As a result of the studies, it has been observed that the plan shape, projection ratios, distances from the re-entrant corner, significantly affect the wind characteristics on building.Research Limitations: In recent years, numerical approaches based on computational fluid dynamics (CFD) simulations are being commonly used engineers and architects for various wind studies such as determining wind loads on buildings and investigating wind flows in built area. Model dimensions were reduced to 1/100 scale to save computing time.Practical Implications: Understanding the behavior of the building under the wind load will increase the solution oriented approach to the problems at the initial part of the design stage.Social Implications: The study supports occupant comfort by making it easier to perceive the design component wind in the architectural sense.Originality/Value: Wind is a significant architectural design component. However, there are very few studies on wind behavior of buildings in the architectural field. This is often observed as an engineering problem. On the contrary, it is primarily an architectural design piece to be perceived. Therefore, understanding the behavior of buildings under wind loads is vital to develop problem-oriented solutions at every stage of the design phase. Projections in plan with different wind angle and distances from the re-entrant corner’s effect on pressure coefficients were not be studied comprehensively. Key Words: Building form, building dimensions, projections, mean wind pressure coefficient, computational fluid dynamics (CFD