Simulation of wind profile in coastal areas by using a structural wind-resistant moving vehicle tester: CFD and experimental investigations

Abstract

In this study, based on the differentially spaced flat plates (FPs) technology, the wind profile with coastal terrain characteristics was simulated by using Computer Fluid Dynamics (CFD) and the transiting test method (TTM). First, CFD was adopted to establish the wind profile calculation models of the 2D and 3D TTM, and the computational domain, mesh types, boundary conditions, and other factors were determined. Second, the shear stress transport k–ω (SST k–ω) and large eddy simulation (LES) turbulence models were used to study the simulation results of the different interval between the FPs and the measuring points. Third, the suitable test conditions were selected from the numerical simulation results to guide the test conditions of the TTM. Lastly, the wind profile simulation results of the two methods were compared and analyzed to obtain the wind profile with coastal terrain characteristics. Results show that the wind and the turbulence intensity profiles obtained by the two methods are in good agreement with the GB 50009-2012 profile curve of exposure category A (i.e., coastal and other areas) when six FPs are used, the interval between the FPs and the measuring points is 240 mm–300 mm, and the inclination angle of the three FPs at the bottom is 7°.