ABSTRACT This study investigated the fluctuating wind pressure distribution characteristics on the geometrically complex spatial structure of the Chengdu Future Science and Technology City Exhibition Center through an integrated approach combining wind tunnel testing with numerical simulations across multiple wind directions. The numerical simulation methodology was rigorously validated against wind tunnel experimental data prior to implementation. Utilizing the Consistent Discretizing Random Flow Generation (CDRFG) method for turbulent inflow boundary conditions and the delayed detached eddy simulation (DDES) approach for complex flow field resolution, the research systematically analyzed multiple key parameters: mean and fluctuating wind pressure coefficients, time‐domain correlation characteristics, surface vorticity distribution, and higher order statistical parameters including skewness, kurtosis, and peak factors. The findings demonstrate distinct spatial patterns in wind pressure correlation, with windward surfaces exhibiting strong coherence whereas leeward and side surfaces show significantly weaker correlation (typically 0.1–0.4, occasionally negative) due to vortex shedding and flow separation phenomena. Notably, the measured peak factors consistently exceeded the conventional 3.5 threshold, reaching maximum values of 6.11, indicating enhanced turbulence intensity that generates more extreme pressure distributions. Vorticity analysis reveals marked directional dependence, with a uniform distribution on windward surfaces contrasting with intense, intermittent shedding on side and leeward surfaces. The non‐Gaussian characteristics of pressure distributions are further confirmed by significant skewness (up to 1.11) and kurtosis (up to 7.12) values. These results collectively demonstrate the highly irregular nature of wind load distributions on complex‐shaped structures, emphasizing the necessity of accounting for these adverse effects in wind‐resistant design practices.
Li et al. (Wed,) studied this question.