【摘要】 通过二阶全展开ETG有限元方法及其与大涡模拟的结合 ,对不同雷诺数条件下的突扩流动进行模拟 ,得到的计算结果与相关文献符合良好更多还原

【Abstract】 Head loss take place when fluid pass a pipe with sudden change in direction or sudden expansion in diameter.The second-order full expansion of Euler-Taylor-Galerkin(ETG)finite element method and its cooperation with large eddy simulation(LES) are used to simulate the flow with sudden expansion in diameter and different Reynolds number.Calculation resultscoincide with that of the given literatures.更多还原