【摘要】 利用有限体积方法在非正交网格系统中建立了非对接分区结构网格数值求解模型,给出了分区结构风格交界面的数据结构形式及数值计算方法,采用SIMPLE算法编制了计算程序;对后台阶绕流进行二分区流场计算,并与实验结果比较,具有很好的一致性;同时对无限流场中和非对称平板间的圆柱绕流进行了分区计算。结果表明,本文建立的分区交界面数值计算模型是可靠的,可用于处理几何形状复杂的流场模拟。更多还原

【Abstract】 The calculation model for non-overlapping block-structured grids in system of nonorthogonal grids in established by finite volume method, data configuration form and numerical algorithm of interface block-structured grids are given and SIMPLE algorithm is adopted for the program. Adopting two block-structured grids, the flow around backward facing step in simulated and compared with experiment data, the result has a good agreement. Flow around a cylinder in an infinite field and the field between two asymmetrically placed plates are also simulated using block-structured grids. The result shows that the numerical calculation model of interface of block-structured grids in reliable and can be used for complex geometry shape.更多还原