Hybrid Arrangement Research Articles

Enhanced turbine endwall cooling using crescent-dimpled film cooling holes and a hybrid configuration: numerical study

The current study proposed a novel crescent-dimpled film cooling hole and investigated its aerothermal performance on the turbine endwall when a row of the film holes are arranged in front of the stator. The mainstream Reynolds number based on the inlet velocity and the axial chord length of the vane was 150,000, and the blowing ratio ranged from 0.5 to 1.5. Besides, a hybrid configuration combining the advantages of the cylindrical and crescent-dimpled holes was also investigated. RANS simulations using Shear Stress Transport (SST) k–ω turbulence model were conducted. The numerical simulations show that the pure crescent-dimpled hole design enhances the adiabatic film cooling effectiveness by 32.3 %, 52.3 %, and 43.6 % at blowing ratios of 0.5, 1.0, and 1.5, respectively. Correspondingly, the net heat flux reduction (NHFR) values are 22.9 %, 57.9 %, and 63 % higher than the cylindrical holes. The high film cooling effectiveness behind the film cooling hole prevents the additional thermal load caused by the dimple-induced heat transfer enhancement. Using cylindrical holes near the leading edge and crescent-dimpled holes elsewhere, the hybrid arrangement suppresses the passage vortex and further enhances the film cooling effectiveness and NHFR by 51.9 % and 93.8 % at BR = 1.5, respectively. The streamlines and vortex structures show that the crescent dimple at the hole’s exit diffuses the coolant, thereby enhancing the film cooling in the lateral direction. Flow separation occurs behind the dimple, which reduces the jet momentum and attracts the jet towards the wall. The curved surface of the dimple directs the horseshoe vortex in front of the jet to the side, and anti-CRVP is formed. These are responsible for the film cooling enhancement by the crescent dimple.

Terahertz RCS reduction employing reconfigurable graphene-based AMC structures

Recently, modern technology has towards stealth technology, especially in military applications so, this paper presents a terahertz radar cross-section (RCS) reduction utilizing reconfigurable graphene-based artificial magnetic conductor (AMC) arrays. The AMC unit cell has a Vivaldi shape with circular slots etched in the radiator to reduce the RCS from metallic surfaces at THz bands. The AMC cells affect the surface impedance of the metallic objects which reduces the reflected EM waves from them. The RCS reduction bandwidth is achieved and controlled by varying the voltage applied to graphene cells which varies its chemical potential (µc). The effect of changing the graphene conductivity on the RCS reduction is investigated. Different arrangements to obtain maximum RCS reduction are presented. A 12 × 12 hybrid arrangement of the graphene-based AMC structures achieved maximum RCS reduction from 1.5 to 4 THz with 22 dB greater than the unloaded metallic surface. The CST simulator is employed in the simulation.

High‐performance photonic crystal fibre biosensor for identifying Jurkat cells by refractive index analysis

AbstractJurkat cells are immortalised lines of human T lymphocyte cells widely used in research to study leukaemia, signalling of T cells, and immune responses. These cells can be used as models to define the mechanisms of leukaemia and to develop mechanism‐based therapies. Jurkat cells can be detected with remarkable accuracy using the recently created Photonic Crystal Fibre (PCF). The suggested design has a hybrid arrangement on its clad surface and a rectangular core. The recently released PCF analyser displays a maximum Relative Sensitivity are 95.81% for Jurkat (type I) and 94.93% for Jurkat (type II), respectively. The Effective Material Loss of 0.0070 cm−1, 0.0080 cm−1, and the Confinement Loss of 9.11 × 10−9 dB/m, 9.15 × 10−8 dB/m were also examined for the previously described units. Jurkat cells represent a model of leukaemia that is very malignant and proliferative, representative of aggressive T‐cell acute lymphoblastic leukaemia with the ability to progress rapidly and hence poor prognosis for patients. The benefit of applying a suggested PCF sensor to Jurkat cell detection lies in the high sensitivity to refractive index changes, allowing label‐free and real‐time monitoring of cell interaction. This PCF sensor can offer high light‐matter interaction, custom geometry, and biocompatibility for specific and reliable detection of deadly Jurkat cells in biomedical research and clinical diagnostics.

Experimental investigation of effect of different configurations of semi-circular or half-round ribs on heat transfer enhancement in a rectangular duct

This research study investigated the impact of various configurations of semi-circular or half-round ribs on the thermal performance and frictional factor characteristics of a rectangular duct. During this research study, the ribs were provided on the inner surface of the test section’s bottom wall. Six distinct configurations of semi-circular ribs varying from continuous to hybrid arrangement were used. The range of Reynolds number was varied from 13,500 to 34,800; while the ratio of rib pitch to rib height (P/e ratio) was kept constant at 8. The ratio of the height of rib to hydraulic diameter of duct (also known as blockage ratio) was kept at 0.114. The results of experimental investigation showed that the Nusselt number ratio obtained was ranging from 1.36 to 2.74, while the friction factor ratio ranges from 1.70 to 4.51. The overall enhancement ratio for all configurations obtained was in the range of 1.06–1.80 times to that of plain duct. Among all rib configurations, the hybrid rib configuration showed superior ratio of Nusselt number and intermediate increase in ratio of friction factor as compared to all the other rib configurations. Hybrid rib configuration showed overall enhancement ratio values ranging from 1.45 to 1.80 times as compared to that of plain duct (duct without ribs) within the specified range of Reynolds number. The results of study showed that the hybrid configuration of semi-circular ribs exhibited superior overall thermal enhancement as compared to that of remaining tested rib configurations.

Governing hybrid organisations: Lessons from the provision of local sports facility services in 2020s Finland

AbstractThe Finnish welfare society is based on strong public and civic sectors with an emerging private sector. In the context of sports, the public sector's statutory task has been to provide opportunities and facilities for citizens, whereas the civic sector has been responsible for organising activities. However, since the 1990s, economic recessions, new public management doctrines, and other societal changes have mixed this institutionalised setting and increased hybridity in the provision of public services. This study examines how hybridity is manifested and governed in the provision of local sports facility services in contemporary Finland through a literature review and a multiple case study focusing on three sports facility construction projects. The projects had partners from all societal sectors and, organisationally, assumed different forms: privately owned, sports clubs co‐owned, and municipally owned enterprises. The case data consist of thematic interviews and project documentation and are analysed with theory‐driven content analysis. The study deepens understanding of the mixed ownership structures, various funding arrangements, control mechanisms, and management of goal incongruency found in hybrid facility‐provider organisations. Additionally, it describes changing roles and challenges that municipalities face in hybrid settings and develops recommendations for future research on hybridity and sports policy.Points for practitioners Note that the capacity to steer the operations of hybrids in municipal services provision can be obtained in various ways which do not entail formal ownership. Deepen your understanding of the goals and commitment incentives of the different stakeholders planned to be involved in the hybrid project. Consider jointly written formal contracts as tools for managing goal ambiguity and incongruence and for creating trust in the hybrid arrangement. Examine comprehensively the resourcing of the facility‐provider organisation in the operational phase of the facility when evaluating the funding arrangements and public value creation of hybrid facility projects. Prepare to become a practitioner and the object subjected to more diverse forms of control when committing to hybrid arrangements with various stakeholders.

Decoupling in hybrid arrangements: Insights from the Australian defence industry

AbstractThe Australian Industry Capability (AIC) program presents an example of hybridity where national security interests are served through a complex partnership between the Department of Defence, global prime contractors, and small and medium‐sized Australian companies. Through a qualitative interview study of stakeholders in the defence industry by and triangulating findings from publicly available defence industry documents, this study aims to document the decoupling associated with the AIC program. We find that complexity and opacity, stemming from hybridity, create decoupling in the implementation of the AIC program. We also find that a lack of accountability and monitoring contributes to decoupling. We advance the literature on hybridity into the context of multi‐organisational arrangements in a unique industry and identify how decoupling can impede the achievement of policy objectives in the context of complex hybrid arrangements.Points for practitioners The Australian Industry Capability (AIC) program represents a case of complex hybrid arrangement in public sector management involving the defence industry. Hybridity of AIC arrangements creates challenges of complexity and opacity, creating conditions that give rise to decoupling. Lack of accountability and monitoring exacerbates these challenges. Potential for coupling is identified with recommendations provided.

Optimal arrangement of AE sensors for prestressed hollow slabs based on AE propagation characteristics

Acoustic emission (AE) health monitoring is crucial for effective data collection, rational monitoring of results, and economical engineering applications in prestressed hollow slabs. To achieve an optimal sensor arrangement, experiments were performed to measure AE attenuation with different propagation paths in both the longitudinal and transverse directions of a full-scale prestressed hollow slab. Then, the AE amplitude and AE energy are chosen as evaluation indexes to investigate the hybrid arrangement of AE sensors under multiple damage conditions. The results indicate that when the AE signal propagates along the longitudinal direction of the prestressed hollow slabs with the same propagation distance, the attenuation in the steel strand is smaller. Additionally, the attenuation in the concrete directly under the bottom strand is smaller than that in the concrete between the bottom strands. The attenuation of AE propagation is smaller in the complete hinge than in the defective hinge. In terms of transverse propagation, the attenuation of AE signals is less in the bottom slab concrete than in the bottom slab steel strands. At the longitudinal 1/3 section of the prestressed hollow slab, the amplitude attenuation rate shows a turning point, and the variation in the attenuation rate of the AE signal is relatively small. For greater efficiency, it is recommended to position the sensors in the middle part of the hollow slab hinge joint and the bottom slab cross section, as well as on the concrete surface directly under the bottom slab strand.

Survey of radiologists on work from home: Using the results to plan a hybrid work model

Background The COVID-19 pandemic saw many radiology departments worldwide adopting work from home (WFH) practices for social distancing and operational resilience. This paper explores the attitudes and perceptions of radiologists on WFH in Singapore. Methods A survey was conducted amongst radiologists at a large tertiary hospital in Singapore from 1 August 2022 to 1 September 2022. Topics included whether they met pre-requisites for WFH, the preferred frequency of WFH, equitability, and perceived impact on joy at work, resident training, and talent recruitment and retention. Results were analysed for significant associations with respondent demographics. Results There was an 88% response rate (49/56). 78% met pre-requisites for WFH. Most radiologists preferred a hybrid arrangement of WFH up to 2 days a week (70%) with 15-20% of their team WFH at any one time. Majority of radiologists wished to WFH when providing out-of-hours coverage (76%). There was perceived positive impact of WFH on individual joy at work (mean rating: 4.1), team joy at work (mean rating: 3.5) and talent recruitment and retention (mean rating: 4.0). Perceived impact on radiology resident training was negative to neutral (mean rating: 2.8). Free-text responses revealed concerns about equitability, WFH setup, training, and collegial relationships. Statistically significant differences in responses were found between genders and radiologists who met pre-requisites versus those who didn’t. Conclusion Our radiologists prefer a hybrid WFH model and anticipate it will increase joy at work and talent recruitment and retention. A hybrid WFH model may help address and mitigate some of the potential negative effects of WFH.

Early diagnosis of oral cancer using a hybrid arrangement of deep belief networkand combined group teaching algorithm

Oral cancer can occur in different parts of the mouth, including the lips, palate, gums, and inside the cheeks. If not treated in time, it can be life-threatening. Incidentally, using CAD-based diagnosis systems can be so helpful for early detection of this disease and curing it. In this study, a new deep learning-based methodology has been proposed for optimal oral cancer diagnosis from the images. In this method, after some preprocessing steps, a new deep belief network (DBN) has been proposed as the main part of the diagnosis system. The main contribution of the proposed DBN is its combination with a developed version of a metaheuristic technique, known as the Combined Group Teaching Optimization algorithm to provide an efficient system of diagnosis. The presented method is then implemented in the “Oral Cancer (Lips and Tongue) images dataset” and a comparison is done between the results and other methods, including ANN, Bayesian, CNN, GSO-NN, and End-to-End NN to show the efficacy of the techniques. The results showed that the DBN-CGTO method achieved a precision rate of 97.71%, sensitivity rate of 92.37%, the Matthews Correlation Coefficient of 94.65%, and 94.65% F1 score, which signifies its ability as the highest efficiency among the others to accurately classify positive samples while remaining the independent correct classification of negative samples.

Projection of monthly surface flows by an optimized SWAT–MLP: a case study

Abstract Recent investigations have noted that using a hybrid arrangement of Soil and Water Assessment Tool (SWAT) and multi-layer perceptron (MLP) has high efficiency in runoff prediction. In this research, in addition to using the SWAT and MLP models, an optimized algorithm called Mutated SunFlower Optimization (MSFO) algorithm has been proposed to predict better runoff, which improves the results of prediction runoff by decreasing the error percentage in the MLP model. For this purpose, first, runoff modeling is used to assess the efficiency of the SWAT system. The model's verification and calibration have been performed using data from the previous 30 years of statistics. Then, the flow stream simulated by the SWAT method is evaluated with the observational data and applied as the inputs to the MLP model, and finally, runoff is predicted through the MLP model, and MSFO is used in the MLP model to obtain better results for runoff prediction. The results show that the values of statistical indices R2, RMSE, NSE, and RE give satisfying agreement for runoff forecast in the SWAT–MLP/MSFO model with values of 0.83, 1.68, 0.51, and −0.1.

Experimental development, techno-economic and environmental analysis of a hybrid solar space heating system in a subtropical climate

Conventional modes of space heating are expensive and cause greenhouse gas emissions resulting in global warming. In this paper, an experimental analysis of a hybrid solar space heating system consisting of flat plate collectors (FPC) and evacuated tube collectors (ETC) along with a convective radiator is presented. Techno-economic and environmental analysis of the system is performed under real winter conditions in a subtropical climate. The experimental setup is designed such that flat plate collectors and evacuated tube collectors can also be operated separately for comparative analysis with the hybrid system (HC). The experimental results show that ETC achieved a maximum average energy efficiency of 72 % followed by the hybrid collector (HC) and FPC with energy efficiencies of 61 % and 57 %, respectively. The maximum exergy efficiency for ETC, HC and FPC are 54 %, 42 % and 33 % respectively in the month of December with low ambient temperatures. The corresponding maximum sustainability index achieved by ETC, HC and FPC, is 1.76, 1.52 and 1.39 respectively. In addition, the panel radiator achieved a maximum heat gain of 1484 W with an average room temperature in the range of 16.4–24.3 ℃. The economic analysis shows that the benefit-to-cost ratio for the hybrid varies from 0.82 to 1.6 and the payback period varies from 8.9 to 7.41 years compared to the electric heater for an inflation rate of 6–13 %. About 38 % more life cycle cost is observed for electric heater as compared to HSSHS. Environmental analysis reveals that 99 % and 78 % more greenhouse gas emissions are caused by conventional heaters compared to hybrid systems. Thus, a hybrid arrangement of FPC and ETC can be more beneficial for space heating compared to individual installations of these low-temperature solar collectors.

Mechano- and solvato-fluorochromic chalcone and its water-based flexo-ink for anticounterfeit applications

Pigments with unique optical features are always sought after in realizing superior security features to protect authentic documents/products against forgery. The present study reports the synthesis of triphenylamine-naphthalene chalcone (TPA-NC) with fascinating optical features: solvato-fluorochromism, mechano-fluorochromism, and aggregation-induced emission. The flexo print obtained on UV dull paper using water-based eco-friendly UV fluorescent ink with TPA-NC as pigment displayed good adhesion, resistance to abrasion, light fastness, and favourable electrical parameter values, which could be well utilized in security documents and developing OTFTs in banknotes to prevent them from being forged. Moreover, the printed paper samples could impart superior features including solvent fugitiveness, penetrating fluorescence, and mechanical stimuli responsive variations in emission color for achieving multilevel security. The security ink prepared using the thermally stable and biocompatible TPA derivative could generate a robust platform for tamper-detection, validation of genuine documents/products and in marking technology. Moreover, an ultra-high radio frequency identification (RFID) antenna is designed to resonate at 2.35 GHz. The hybrid arrangement has steady radiation characteristics for electronic anticounterfeiting applications.

A new approach for simultaneous thermal management of hot and cold sides of thermoelectric modules

Thermoelectric generator systems are often exposed to unstable heat loads with high-amplitude temperature variations and there is a risk for overheating and system damage. One technique for stabilizing temperature fluctuations on thermoelectric module surfaces is utilization of phase change material. Nevertheless, the energy storage/release rate is slow due to its low thermal conductivity. This research deals with employing a foam-imbedded-phase change material on either side of the module to intensify the thermal conductivity and accelerate the heat dissipation. The thermal management strategy of the module was performed by embedding an energy storage unit on the hot side and zero-cooling energy system on the cold side. A system with external resistance over the module, integrated with phase change material containing copper foams on both sides, subjected to some heat loads, was investigated and compared with two other systems containing and lacking phase change material. A faster thermal diffusion occurred in hybrid arrangement of phase change material and foam, namely case 3, suggested a suitable alternative over the case containing only phase change material (case 2). Adding the foam enhances the heat flux through the phase change material by reducing the overall thermal resistance in the energy storage unit. Replacing the case 2 with new case 3 diminished the hot and cold side temperatures without decreasing the output voltage up to 8% and 7%, respectively. Case 3 produced energy for a longer time comparing case 2 before reaching the critical conditions. This study offers a practical solution for design of autonomous and self-sufficient systems with zero-cooling energy and higher safety under dynamic thermal sources.

Parametric Analysis of the Solar-assisted Intercooled Gas Turbine and Organic Rankine Cycle for Waste Heat Recovery and Power Production

The energy consumption has gradually increased in the current context. Fossil fuels are the primary source of energy for the world’s population. Furthermore, energy derived from fossil fuels has significant disadvantages, including increased pollution and global warming. Solar energy is the fastest-growing alternative to fossil fuels among the various energy options. As a result, the focus of the present work is on the thermo-economic analysis of a hybrid solar-assisted intercooled gas turbine (GT) and organic Rankine cycle (ORC) for waste heat recovery and power production at near-zero-emissions. The work outcome and maximum efficiency of the hybrid arrangement are 1342.12 kW and 71.12% respectively at the cycle pressure ratio of 8, and 443 K entry point turbine temperature. The economic model of the integrated system depicts that the unit power production cost for the combined system has been evaluated as 1932 e per kW.

Laser-Induced Graphene on Optical Fibre: Towards Simple and Cost-Effective Electrochemical/Optical Lab-on-Fibre Bioplatforms

A 3D graphene foam made of interconnected multilayer graphene flakes was produced on optical fibres (OF) by laser-induced transformation of a polyimide (PI) film coated on the OF cladding. This material, known as laser-induced graphene (LIG), was explored in the electrochemical detection and quantification of dopamine (DA) at physiologically relevant concentrations in the presence of the most relevant interfering molecules in biological fluids, ascorbic acid (AA) and uric acid (UA). The measured limit of detection is 100 nM, the linear range is 0.1 to 5.0 μM and a maximum sensitivity of 5.0 µA µM−1 cm−2 was obtained for LIG decorated with Pt nanoparticles (NPs). Moreover, immunity to AA and UA interference and to fouling was attained by decorating the LIG electrode with Pt NPs and coating it with Nafion. These figures of merit underline the potential of these sensors for the quantification of physiologically relevant concentrations of DA in biological fluids, paving the way for the development of hybrid electrochemical/optical sensing actuating platforms in a lab-on-fibre configuration, with relevant applications in biomedical engineering. The advantages of this hybrid arrangement include the possibility of in situ counterproofing, extended measuring ranges, photoelectrochemical detection and the probing of inaccessible places. This elegant approach can also provide a simple and cost-effective way to fabricate biomedical devices with extended functionality, such as medical optical probes with added electrochemical capabilities and optogenetics combined with local electrochemical detection, among others.

Profiling occupational therapists’ preference for an international master’s program in occupational therapy: A needs analysis study

Background: To advance occupational therapy knowledge and practice in Southeast Asia, it is pivotal that quality master’s degree programs in occupational therapy are in place. Such a program must respond to the needs of the region in terms of occupational therapy education, practice, and scholarship. By recognizing the diversity of the occupational therapy education and training in the region, it has become possible to consider alternatives in establishing a graduate program in occupational therapy through partnerships and consortia. In order to make an informed decision to decide whether co-creating a master’s program in occupational therapy through an international consortium within the region is possible or not, a needs assessment is warranted. Objectives: To describe the profile of occupational therapists living and working in the Southeast Asian region who would like to pursue a master’s degree in occupational therapy via an international consortium. Materials and methods: An online survey design was used to produce data that would be used to inform the co-creation of an international master’s program in occupational therapy. The survey questionnaire was designed specifically for this study and included three sections: 1) information and consent form; 2) demographic information; and 3) information about the need for and preferences on a master’s program in occupational therapy. Participants were recruited through professional organizations and various social media platforms of national and international occupational therapy groups. Results: Eighty-five final-year occupational therapy students and 143 occupational therapists from the Philippines, Indonesia, Thailand, and other countries completed the survey. Majority (62%) of the respondents was interested in pursuing a master’s degree in occupational therapy because they perceived that an advanced degree can enable specialization in practice, promote personal and professional development, and help generate new knowledge for the field. The characteristics of the envisaged international master’s program must be: 1) completed ideally in 1.5 to 2 years, 2) taken by part-time students who are also working practicing, 3) delivered via a hybrid arrangement (i.e., online and face-to-face) with a fixed weekly schedule, and 4) matriculated for USD 1,000 per semester. Conclusion: While this cross-sectional survey cannot encapsulate the totality of occupational therapists’ needs in terms of their professional development, the survey provided an empirical basis to inform decisions in the creation of a master’s program in occupational therapy jointly offered by an international consortium of Southeast Asian universities.

Fabrication of high power density paper-based microfluidic fuel cell using a stepped catalyst layer

Paper-based microfluidic fuel cells (PMFCs) gradually become alternative energy sources due to their advanced features, including simple structure, low cost, without requiring auxiliary equipment. However, the applications of PMFCs are limited by the poor power density and expensive cost. Therefore, a novel design of catalyst layer with stepped Pd distribution is proposed to improve the PMFC performance and reduce the cost. An experimental investigation is performed to understand the underlying influence mechanism of the catalyst layer properties, including Nafion solution content catalyst layer area, catalyst loading and catalyst distribution. We found that the proportioin choice of 4.76% Nafion solution in preparing catalyst layer achieves a shortest reaction time and a highest output performance. In addition, choosing a small catalyst layer area and high catalyst loading is beneficial to improve the current density. With the hybrid arrangement of stepped catalyst layers, the PMFC reduces the cost and presents highest current density of 44.10 mA cm−2 and peak power density of 12.87 mWcm−2. Finally, our designed PMFC stack is employed to power a thermohygrograph and a blood glucose meter for at least 5 h. These practical applications are in favor of supporting the developments of integrated device with energy generation and electrochemical detection.

Design and operation of a hybrid LED/LD-pumped phosphor-converted white-light lamp.

Illumination sources based on phosphors, pumped by laser diodes (LDs), have seen rapid developments over the past decade. Here, we present a new, to the best of our knowledge, design that features both spectral richness and the capability for high brightness. Complete design details and operational characterization have been described. This basic design can be extended in various ways to customize such lamps for different operational requirements. A hybrid arrangement of both LEDs and an LD is used to excite a mixture of two phosphors. The LEDs, in addition, provide a blue fill-in to enrich output radiation and to tune the chromaticity point inside the white region. The LD power, on the other hand, can be scaled up to generate very high brightness levels that are not achievable with pumping from LEDs alone. This capability is gained using a special transparent ceramic disk that carries the remote phosphor film. We also show that the radiation from our lamp is free from speckle-producing coherence.

New Topology of a Hybrid, Three-Phase, Four-Wire Shunt Active Power Filter

With a view to reducing harmonic content in electrical power systems, and, consequently, improving power quality level, filters and other harmonic compensation devices are widely used. In the category of filters, they can be distinguished into two classes that are related to the operating mode, active or passive, both widely known and applied in electrical power grids and in the most diverse industry sectors. In this sense, taking into account the use of compensating devices in four-wire electrical systems feeding single-phase, non-linear loads, this paper presents a new hybrid arrangement of harmonic compensation that incorporates both active and passive filtering, which performs all functions concerning the harmonic compensation of a four-leg shunt active power filter. In this hybrid arrangement, the harmonic filtering of positive and negative sequence components is performed by a three-leg shunt active power filter, while the filtering of zero-sequence harmonics is attributed to the electromagnetic zero-sequence suppressor. The results, which confirm the effectiveness of the proposed hybrid arrangement, are proven through simulations and experimental tests in different operating scenarios, revealing a substantial improvement in the system’s power factor, as well as a reduction in harmonic distortions.

Hybrid Topography of Lotus Leaf under Hydrostatic/Hydrodynamic Pressure

AbstractThe superhydrophobic characteristics and functional durability of the lotus leaf are determined by its surface flexible multistage topography. In this study, it is found that the hybrid arrangement of sub‐millimeter (sub‐mm) and micron papillae arrays on the edge of lotus leaves is more conducive to its resistance to hydrostatic and hydrodynamic water pressure, which provides a guarantee for the survival of lotus leaves. Inspired by this special design, a flexible hybrid structure is prepared by the template method, whose surface contains sub‐mm pillars, micropillars, and nanostructures. It has obvious advantages in resisting the continuous impact of water droplets. This systematic study reveals why the surface of the lotus leaf can withstand the fluid impact, and it provides a theoretical and experimental basis for improving the durability of artificial superhydrophobic function.