后台阶涡结构的大涡模拟
Large eddy simulation in eddy structure of backstep
采用大涡模拟方法、亚网格湍流模型及SIMPLER计算方法，对后台阶中的流动进行了数值计算。详细讨论了涡结构回流区长度随不同台阶长度、不同入口条件的变化情况以及随时间的演化过程。这些结果与有关实验结果进行对比，其变化情况吻合良好。本研究可作为针对后台阶两相流动研究的基础。
Simulation of backstep flow is carried out using large eddy simulation , SGS model and SIMPLER method. It is shown that the eddy coherent structures evolving in spatially with time increasing were visualized. The change of the reattachment length with different length of the step and different entrance conditions, is also obtained. And comparison with experiment data is performed.. The present research paves a way for the two-phase turbulent flow.
刘晓军、武生智
力学
大涡模拟后台阶涡结构
large eddy simulationbackward-facing stepeddy coherent structure
刘晓军,武生智.后台阶涡结构的大涡模拟[EB/OL].(2009-03-12)[2025-06-15].http://www.paper.edu.cn/releasepaper/content/200903-441.点此复制
评论