| Title |
Wind Tunnel Experiment about Effect of Protection against Wind according to the Variation Porosity of Wind Fence |
| Authors |
Kim Young-Moon ; Jeon Jong-Gil ; You Ki-Pyo |
| Keywords |
Hot-wire Anemometer ; Wind Fence ; Porosity ; Uniform Flow |
| Abstract |
Flow characteristics of velocities and turbulences behind wind fence were measured using hot-wire anemometer. We characterize the turbulence behind the wind fence by varying the porosity of 0 %, 20 %, 40 %, and 60 %, and the distances from the wind fence from 1 H to 9 H with maintaining the uniform flow velocity of 6 m/s. In addition, we investigated the overall characterization of the wind fence by measuring total of twenty eight points on the wind fence, which forms the lattice structure on it with seven points in lateral direction and four points in vertical direction. The results indicate that the degree of the turbulence is lowered and the velocity of the wind is decreased when the vertical fence and circle fence of porosity of 40 % and horizontal fence of porosity of 20% are used at the distance from 4 H to 7H. |