| 摘要: |
| 采用显式的TVDMacCormack格式，并结合Baldwin－Lomax的代数湍流模型和低雷诺数两方程k－ε模型分别求解了喷管内横流流场的二维N－S方程，得到了与理论分析结果相近似的流场结构图谱，并对代数湍流模型和两方程模型得到的结果进行了比较，表明运用两方程模型所得到的结果稍好于代数模型。 |
| 关键词: 喷管气流 流动分布 纳维尔-斯托克斯方程 TVD格式+ 湍流模型 |
| DOI： |
| 分类号:V434 |
| 基金项目:国家“八六三”基金 |
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| THE NUMERICAL SIMULATION OF CROSS-FLOW IN NOZZLE BY USING A TVD SCHEME |
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Xu Xu,Zhang Zhenpong
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School of Astronautics,Beijing Univ. of Aeronautics and Astronautics,Beijing, 100083
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| Abstract: |
| A time-split explicit TVD MacCormack scheme is used to solve the two-dimensionalN-S equations of cross-flow in rocket motor nozzle. Both the algebraic turbulence model of Baldwinand Lomax and the low Reynold number two-equation k-ε turbulence model of Lam and Bremhorstare used in this procedure. The results are compared with each rother and show that the k-ε model cangive slightly better solutions than the algebraic one. |
| Key words: Nozzle flow Flow distribution N-S equations TVD scheme~+ Turbulence model |
