| Title |
Wind Tunnel Experiment about Effect of Protection against Wind according to the Variation Porosity of Wind Fence |
| Keywords |
wind fence ; porosity ; uniform flow ; |
| Abstract |
Flow characteristics of velocities and turbulences behind wind fence were measured using hot-wire anemometer. Wind Fence used in this paper are porosity of 0%,20% and 40%. An Atmospheric boundary layer used in the experiment was uniform flow and wind velocity was 6m/s. Measure point on face were 28 point and measure distance were from 1H to 9H. The paper is divided into two main parts, the first deals with single wind fence and the second with combinations of wind fences. As a result, porosity of 20% was very advantageous measure distance the 1h-3h??but porosity of 40% was very advantageous measure distance??4h-6h. |