| 摘要: |
| 采用NND2M差分格式 ,从考虑k ε湍流模型的理想气体三维薄层近似N S方程出发 ,对塞式喷管内外流场进行了数值模拟。计算结果与国外文献十分一致。通过流场分析 ,对塞式喷管流动机理有了清楚的认识。计算表明NND2M差分格式及相应计算软件适合于模拟复杂喷流流场 ,可用于塞式喷管发动机的研究。 |
| 关键词: 塞式喷管火箭发动机 喷管气流 流动分布 数值仿真 纳维尔斯托克斯方程 |
| DOI： |
| 分类号:V430 |
| 基金项目: |
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| Numerical simulation of plug nozzle flow field |
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Guo Zheng, Liu Jun, Qu Zhanghua
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Inst.of Aerospace and Material Engineering,National Univ.of Defence Technology,Changsha 410073,China
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| Abstract: |
| Numerical simulation of plug nozzle flow field was completed based on 3-D TLA N-S equations with NND2M scheme. Calculations were performed under ideal, perfect gas assumptions. Turbulence was taken into account with a k-ε turbulence model. The flow structure and properties obtained agree well with the results reported.It shows that NND2M scheme is suitable for numerical simulation of complex jet flow. |
| Key words: Plug nozzle rocket engine Nozzle flow Flow distribution Numerical simulation Navier-Stokes equation |
