Numerical Simulation Study of Aerodynamic Noise in High-Rise Buildings

In order to study the aerodynamic noise on surfaces of high-rise buildings under action strong winds, this paper numerically simulated sound pressure field surface a building using large-eddy simulation method combined with acoustic analog FW-H (Ffowcs Williams–Hawkings) equation and obtained intensity radiation distribution further identify area maximum thus achieve purpose locating source. The accuracy numerical results for in was then verified by comparing wind tunnel experimental results. locations source experiment were good agreement. pulsation time course measured experiment, level spectrum each part fast Fourier transform (FFT). Furthermore, spectral characteristics analyzed. from compared results, which found be very similar. analysis reveals that middle- high-frequency bands are agreement but there is difference between those low-frequency microphone array used locate suffer non-eliminable measurement errors, might potential reason reasonably slight background band relatively large, while basically no simulation. This shows analogy (FW-H) can calculate at various points predict location addition, similar most frequency bands.