摘要
本文将代数应力模型推广应用于具有起伏表面的紊流数值计算.对水面起伏问题进行了研究,首次提出了“弹性盖”的概念,给出了处理起伏表面的方法,依此可计算出自由表面的位置和给出更精确的结果.从而克服了SIMPLE算法在处理水面起伏问题上的弱点,且比MAC等方法简单易行.文中以表面射流和底部射流为例,说明了“弹性盖”法的具体应用,计算结果与试验值符合良好.
The algebraic stress model has been used in this paper to calculate the turbulent flow with wavelike free surface. In order to treat wavelikewater surface, a new method-----'elastic-lid' method棗has been presentedby the authors for the first time. Compared with 'rigid-lid' method, this method can treat more complex free surface. It is simpler than MAC method, and easy to be used together with existing turbulent models. Two examples of flow conditions are given to show the application of this method. The calculated and measured results are in good agreement.
出处
《水利学报》
EI
CSCD
北大核心
1990年第10期16-22,共7页
Journal of Hydraulic Engineering
基金
国家教委专项科研基金
