| 赵兴艳,苏莫明.亚、跨、超音速及不可压流动的数值分析方法的研究[J].计算力学学报,2001,18(4):397~401 |
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| 亚、跨、超音速及不可压流动的数值分析方法的研究 |
| Numerical simulation of compressible and incompressible flows |
| 修订日期：1999-02-25 |
| DOI：10.7511/jslx20014080 |
| 中文关键词: 亚音速流动 跨音速流动 不可压无粘流动 超音速流动 PLU－SGS方法 计算流体力学 隐式时间推进法 有限体积法 |
| 英文关键词:implicit time marching method,finite volume method,preconditioning algorithm,characteristic boundary conditions,high order accuracy. |
| 基金项目: |
| 赵兴艳 苏莫明 |
| [1]西安交通大学，西安710049 [2]西北工业大学，西安710072 |
| 摘要点击次数: 1641 |
| 全文下载次数: 8 |
| 中文摘要: |
| 为了对亚、跨、超音速及不可压无粘流动进行数值模拟，将LU－SGS方法与预处理方法结合，给出了PLU－SGS方法。方程离散基于有限体积法，采用高阶精度AUSMPW格式。方程求解采用了特征边界条件。通过典型算例的数值试验对比分析，表明PLU－SGS方法可以有效地对亚、跨、超音速及不可压流动进行数值模拟，并具有较高的计算精度和收敛速度。 |
| 英文摘要: |
| A computational method is developed in order to calculate compressible and incompressible flows by using implicit time marching method. The equations are preconditioned to permit solution of both compressible and incompressible flows. A cellbased, finite volume discretization is used in conjunction with AUSMPW scheme. Characteristic boundary conditions based on the eigensystem of the preconditioned equations are employed. Computational capabilities are demonstrated through computation of a wide variety of problems. Comparison of the calculations with available numerical data shows that the method is accurate, self-adaptive and stable for a wide range of Mach numbers. |
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