8m×6m风洞第一试验段大气边界层模拟

Boundary layer simulation in the first test section of 8m×6m wind tunnel

介绍了在8m×6m风洞第一试验段(12m×16m)一种地形的大气边界层模拟装置的设计、风洞流场校测试验。试验结果表明:模拟实现的流场品质(平均风速剖面、湍流强度剖面、湍流谱以及积分尺度等)完全可以满足桥梁试验要求的来流特性。

This paper discusses the boundary layer simulation in the first test section (12m×16m)of 8m×6m wind tunnel. The statistical parameters, mean wind profile, turbulent density profile, wind spectra and integral scale, are calculated by using the measured samples of fluctuating wind components. The results show that the simulated flow field can satisfy the requirement of longspan bridge test to oncoming flow field.