高超声速热流高精度数值模拟方法

姜振华; 阎超

高超声速热流高精度数值模拟方法

姜振华,
阎超

北京航空航天大学航空科学与工程学院, 北京 100191

基金项目: 国家自然科学基金资助项目(90716010); 国家重点基础研究发展计划资助项目(2009CB724104)

详细信息

作者简介:
姜振华(1986-),男,山东威海人,博士生,zhenhua122122@163.com.

中图分类号: V 211.3
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出版历程
- 收稿日期: 2010-08-12
- 网络出版日期: 2012-12-30

High order accurate methods in numerical simulation of hypersonic heat transfer

School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 通过高超声速下钝锥热流的计算,对影响热流计算精度的因素进行了综合研究.获得了壁面法向网格Re数对热流计算的影响规律.采用边界高阶插值,提高了热流计算精度.用Roe和AUSM(Advection Upstream Splitting Method)+格式搭配minmod和混合limiter两种限制器,探讨了空间离散方法及限制器的耗散性对热流结果的影响.应用五阶WENO(Weighted Essentially Non-Oscillatory)方法,对高阶格式计算热流的性能进行了细致研究,最终确立了网格依赖小,热流精度高的计算方法.研究认为:高阶格式不但可以放宽热流计算对网格Re数的限制,同时使得格式对本身计算方法的依赖性也变小.
- 热流 /
- 网格Re数 /
- 高阶格式 /
- 高精度
Abstract: Influencing factors of hypersonic heat transfer simulation were studied with the blunt cone model. The connection between heat transfer computation and wall-normal grid Renolds number was established. Stable and accurate heat transfer result was acquired with high-order interpolation methods. A variety of schemes and limiters were evaluated to research the influence of numerical diffusion on heat transfer calculation. Five-order weighted essentially non-oscillatory(WENO) scheme was employed in heat transfer computation and high-order accurate methods for hypersonic heat transfer prediction were established. It shows that high-order scheme can not only broaden the grid Reynolds number range but also reduce the dependence on space discretization methods in heat transfer computation.
- heat transfer /
- grid Renolds number /
- high order scheme /
- high resolution

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参考文献(1)

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