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Depth-averaged Nonlinear k-ε Model and Technique for Its Program Development 认领 引用 被引量：2
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作者 洪益平 周雪漪 +1 位作者 陈永灿 余常昭 《Tsinghua Science and Technology》 CAS 1999年第1期103-106,共4页
Without the ‘rigid lid’ assumption, the depth averaged linear k-ε model can describe the change of water depth. However, it is incapable of accurately simulating turbulent flows, where the normal Reynolds stresses ... Without the ‘rigid lid’ assumption, the depth averaged linear k-ε model can describe the change of water depth. However, it is incapable of accurately simulating turbulent flows, where the normal Reynolds stresses play an important role. A depth averaged nonlinear k-ε model is developed taking into account the stress relations described by Speziale. The depth averaged linear and nonlinear k-ε models can both be used to calculate the flow field near a side discharge into open channel flow, but the results of the nonlinear model are in much closer agreement with experimental results. Furthermore, the technique of changing the 2D linear k-ε program into a depth averaged, nonlinear program is presented.  展开更多
关键词 depth averaged non linear k-ε model technique for program development
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