University of Tehran Press Journal of Ecohydrology 2423-6098 5 1 2018 03 21 Investigation of the Effect of Wind Breaks in Decreasing Reservoir Evaporation Using Fluent (Case Study: Chahnimeh of Sistan) Investigation of the Effect of Wind Breaks in Decreasing Reservoir Evaporation Using Fluent (Case Study: Chahnimeh of Sistan) 265 278 64930 10.22059/ije.2017.236320.652 FA Seyed Arman Hashemi Monfared Mehdi Rezapoor دانشگاه علوم دریایی چابهار Tahmineh Zhian دانشجوی کارشناسی ارشد Journal Article 2017 06 10 Evaporation depends on various factors including temperature, wind speed, humidity, water salinity, water depth, etc. Early studies have shown that wind was found to be the most important factor in evaporation in Chahnimeh region, Sistan and Baluchistan, Iran. Using windbreaks is a method to control the wind speed, which contributes to reduced evaporation. The data were collected from the Zahak Meteorological Station of Zabol, Iran. This article aimed to simulate the wind flow passing over the windbreak using the FLUENT numerical model and determine the effect of windbreak geometry and distance between windbreaks on input wind speed. Therefore, the geometry of the problem was determined in GAMBIT to solve the flow field. Meanwhile, computational field meshing and type of ruling boundary were determined. After preparing the network and determining the boundaries of the flow field, the file was analyzed in FLUENT and the analytical conditions of the fluid, its characteristics, and the specification of boundary conditions were applied on the geometry. Accordingly, the problem was solved. The results showed that if 2m height windbreaks are vertically installed at north-west direction, the evaporation is effectively reduced Evaporation depends on various factors including temperature, wind speed, humidity, water salinity, water depth, etc. Early studies have shown that wind was found to be the most important factor in evaporation in Chahnimeh region, Sistan and Baluchistan, Iran. Using windbreaks is a method to control the wind speed, which contributes to reduced evaporation. The data were collected from the Zahak Meteorological Station of Zabol, Iran. This article aimed to simulate the wind flow passing over the windbreak using the FLUENT numerical model and determine the effect of windbreak geometry and distance between windbreaks on input wind speed. Therefore, the geometry of the problem was determined in GAMBIT to solve the flow field. Meanwhile, computational field meshing and type of ruling boundary were determined. After preparing the network and determining the boundaries of the flow field, the file was analyzed in FLUENT and the analytical conditions of the fluid, its characteristics, and the specification of boundary conditions were applied on the geometry. Accordingly, the problem was solved. The results showed that if 2m height windbreaks are vertically installed at north-west direction, the evaporation is effectively reduced https://ije.ut.ac.ir/article_64930_281030ee962202b0ce9b8f8bf6348161.pdf