| 空间推进方法求解抛物化Navier-Stokes方程及其验证 |
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| 引用本文： | 贺旭照,乐嘉陵.空间推进方法求解抛物化Navier-Stokes方程及其验证[J].空气动力学学报,2007,25(2):189-193. |
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| 作者姓名： | 贺旭照 乐嘉陵 |
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| 作者单位： | 中国空气动力研究与发展中心,四川,绵阳,621000 |
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| 基金项目： | 国家863高超音速飞行技术研究基金项目 |
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| 摘 要： | 采用伪时间空间推进方法求解完全气体PNS方程。PNS方程采用有限体积方法离散,在推进方向上采用一阶精度迎风格式,在推进面的展向和法向采用三阶精度的MUSCL插值和AUSM类通量构造格式;在推进面上的伪时间推进采用二维LU-SGS迭代方法。通过算例证明,空间推进方法能得到正确的压力、摩阻和热流分布,且计算时间比时间迭代方法快一个数量级以上。
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| 关 键 词： | 超声速流场 空间推进方法 抛物化Navier-Stokes方程 |
| 文章编号： | 0258-1825（2007）02-0189-05 |
| 修稿时间： | 2006-01-252006-05-10 |
Solving PNS equations with space marching method and it's validation |
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| HE Xu-zhao,LE Jia-ling.Solving PNS equations with space marching method and it''''s validation[J].Acta Aerodynamica Sinica,2007,25(2):189-193. |
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| Authors: | HE Xu-zhao LE Jia-ling |
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| Institution: | China Aerodynamic Research and Development Center, Mianyang Sichuan 621000, China |
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| Abstract: | This paper use pseudo-time space marching method to solve caloric perfect gas mode PNS equations.PNS equations are discretized by finite volume method,using first order up-wind scheme in the streamwise direction and third order MUSCL interpolate method and AUSM category schemes in the normal direction and spanwise.In the space marching plane,implicit,two dimensional LU-SGS iteration method is used.Present method is validated by three examples and all of them have good agreements in velocity profiles,wall pressure,wall heat flux and wall skin friction. |
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| Keywords: | supersonic flow space-marching method Parabolized Navier-Stokes |
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