Study on the reliability of a single-sweep space marching algorithm for hypersonic flows

YANG Pan; CHEN Bing; XU Xu

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Study on the reliability of a single-sweep space marching algorithm for hypersonic flows

更新时间：2026-07-07

- Study on the reliability of a single-sweep space marching algorithm for hypersonic flows
- Vol. 24, Issue 11, (2009)
- 作者机构：
  
  北京航空航天大学宇航学院,北京,100191
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2009
- 稿件说明：
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YANG Pan, CHEN Bing, XU Xu. Study on the reliability of a single-sweep space marching algorithm for hypersonic flows[J]. 2009, 24(11).
DOI：

YANG Pan, CHEN Bing, XU Xu. Study on the reliability of a single-sweep space marching algorithm for hypersonic flows[J]. 2009, 24(11). DOI：

摘要

通过高超声速流动的三个典型算例

研究单次扫描空间推进(SSPNS)算法计算高超声速流场气动力、气动热的精度以及适用范围.结果表明:①在楔角不大于15°

流动无流向分离的情形下

用SSPNS算法计算压缩楔板流动是可行的;②对绕圆锥流动的计算表明

SSPNS算法对横向分离的模拟是值得信赖的;③对于12°攻角以内的小攻角绕翼流动

SSPNS算法的精度与时间迭代法基本一致;④空间推进法计算速度较时间迭代CFD(计算流体动力学)方法提高1～2个数量级.

Abstract

The accuracy of a single-sweep parabolized Navier-Stokes(SSPNS) algorithm for aeroforce and aeroheating prediction in hypersonic flow fields has been tested through three typical cases.The results suggest: 1) It is feasible for the SSPNS algorithm to predict hypersonic laminar compression corner flows with wedge angle smaller than 15°

when there is no obvious streamwise flow separation.2) According to the numerical results of cone flows(biggest attack angle 24°)

the simulation of transverse separations with the SSPNS algorithm are reliable.3) For the flows over a two-dimensional wing with attack angle smaller than 12°

the accuracy of the SSPNS algorithm corresponds to that of time-iterative algorithm.4) As compared to the traditional time-iterative full Navier-Stokes

the SSPNS algorithm's computational speed is faster by 1～2 order of magnitude and presents a considerable storage saving.

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