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Numerical simulation of the Flow Over Bolund Based on DES
Pages: 761-765
Year: Issue:  4
Journal: Journal of Engineering Thermophysics

Keyword:  numerical simulationDESmicrositingBolund;
Abstract: Nowadays,a large part of wind farms are located in complex terrains.The flow behind hills has large separation characteristics.In order to use detached eddy simulation in the simulation of flow over complex terrain,Bolund Island with an almost vertical upstream escarpment was simulated using DES with wall function.Computational domains with different density grids were utilized.Flow structure details and good results can be obtained when the grid size is a 5% smaller than the height of the island in large separation region,when using central scheme.DES has better performance than RANS in large separation region.
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