Experimental Study on Wind Profile Creation with Multi-Fan Wind Tunnel

Abstract

A wind tunnel experimental setup with a multi-fan, which is considered to be relatively easy to create unsteady airflow compared to a large fan, was used to reproduce natural wind fluctuations. In the absence of walls and ceiling of the wind tunnel, it was shown that the airflow equivalent to uniform flow and roughness category III was not very uniform except near the center of the turntable. However, it will be possible to reproduce the variation of natural wind by controlling the fan speed near the center of the turntable.