| Title |
Large Eddy Simulation of Rectangular Open-Channel Flow using OpenFOAM |
| Authors |
반채웅(Ban, Chaewoong) ; 최성욱(Choi, Sung-Uk) |
| DOI |
https://doi.org/10.12652/Ksce.2014.34.3.0833 |
| Keywords |
큰 와 수치모의;난류;내부이차흐름;레이놀즈 응력;난류강도 Large eddy simulation;Turbulence;OpenFOAM;Inner secondary currents;Reynolds stress;Turbulence intensity |
| Abstract |
For the establishment of effective water resources management platform for Jeju-Island, the characteristics, including surface runoff, evapotranspiration, groundwater recharge and discharge are to be properly quantified. Among these hydrologic components, interception due to vegetation is very important factor but it is hard to be quantified. After Von Hoyningen-Huene (1981) found the relationship between LAI (Leaf Area Index) and interception storage, LAI has been used for key factor to estimate interception and transpiration. In this study the equation suggested by Kozak et al. (2007) is implemented in SWAT-K (Soil and Water Assessment Tool - Korea) model and is tested at the Cheonmicheon watershed in Jeju-Island. The evaporation due to interception was estimated as 85~104mm, 8~11% of whole evaporation. Therefore it is necessary to consider the evaporation due to interception as a controlling factor to water budget of this watershed. |