【摘要】 在提出亚边界的同时，通过对包含亚边界在内的边界控制网格的细化处理，发展了以一阶迎风为基的高阶差分格式离散方法，并将该方法推广应用于三阶QUICK格式和AHARP格式对液钠方腔内的热分层流动的数值模拟中，解决了应用湍流标准。κ－ε模型模拟热分层流动过程中高阶差分格式隐式数值计算的收敛问题。更多还原

【Abstract】 A straggling method of high-order difference schemes bassed on the first-order upwind has been developed by tiny processing of boundary control volume includling secondary boundary. The method is applied to formulate third order QUICK and SHARP in numerical simulation of thermally stratified flow in a rectangular cavity filled with sodium. The convergence problem of numerical calculation with the turbulent standard κ-εmodel and the complete-implicit time defference scheme in simulation of thermally stratified flows have been solved.更多还原