Generation of atmospheric boundary layer in the IIUM low speed wind tunnel

[摘要] The purpose of this paper is to describe an attempt made to simulate the atmospheric boundary layer (ABL) in the Low Speed Wind Tunnel (LSWT) at IIUM. This was performed through modifications of the inlet and surface conditions of the test section. Devices such as spires, fences and surface roughness were used. The ASCE 7-10 standard was used as a reference to validate the results between the wind tunnel data and the full-scale ABL flow characteristics. The velocity profile and turbulence intensity were measured using a one-dimensional hotwire (CTA) probe. The data obtained show good agreement with ASCE 7-10 velocity profiles for exposures B and C while using a scale of 1:488 to match the wind tunnel data. The turbulence intensity profiles do not show a good agreement.

[发布机构] Dept. of Mechanical Engineering, International Islamic University Malaysia, PO Box 10, Kuala Lumpur; 50728, Malaysia^1

[效力级别] 无线电电子学 [学科分类] 航空航天科学

[关键词] Flow charac-teristics;Low-speed wind tunnel;Surface conditions;Test sections;Turbulence intensity;Turbulence intensity profiles;Velocity profiles;Wind-tunnel data