Title |
Effect of Wind Fences in Reducing Wind Velocity at Fruit Farms |
Authors |
You Ki-Pyo ; You Jang-Youl ; Kim Young-Moon |
Keywords |
Wind Fence ; Porosity ; Real-time Measurement ; Fruit Farms |
Abstract |
Fruit growers install wind fences to prevent fruits from dropping. To examine the effect of wind fences in reducing wind velocity, this study conducted a performance experiment, a farmhouse model wind tunnel experiment, and field measurements, and analyzed how wind fences reduce wind velocity. Among the three types of wind fence with porosities ranging between 30%, 40% and 55%. For the wind fence experiment, we selected two fruit farms growing pears. We modeled the fruit farms and the surrounding topography at a scale of 1/1000. Field measurements to examine the effect of wind fences on wind velocity reduction were made at a real farm, which was Farm 1 in the model experiment. The windbreak performance of the wind fence was highest when its porosity was 40%. According to the result of a field measurements at Farm 1, wind velocity decreased by 92% at 6m behind the shelter fence. This result is almost coincident with the result of an experiment on the performance of a wind tunnel experiment. |