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A hybrid kinetic WENO scheme for compressible flow simulations
Liu HW(刘洪伟); Yu ZP(于长平); Li XL(李新亮)
会议录名称Proceedings of The 10th International Conference on Computational Fluid Dynamics
2018-07
页码ICCFD10-389-2018
会议名称The 10th International Conference on Computational Fluid Dynamics (ICCFD10)
会议日期July 9-13, 2018
会议地点Barcelona,Spain
摘要

The hybrid kinetic Weighted Essentially Non-Oscillatory (WENO) scheme proposed in Int. J. Numer. Meth. Fluids 2015, 79: 290-305 is further studied in this paper. In a conventional WENO framework, flux vector splitting (FVS) techniques are usually used for the numerical flux evaluation at cell interfaces, and it is well known that the numerical dissipation of FVS methods is relatively large due to the free transfer mechanism of gas molecules, in order to reduce the dissipation in the procedure of flux calculations, a hybrid kinetic WENO scheme was introduced in the above-mentioned paper, where the 5th order scheme employing the proposed hybrid kinetic approach has been validated. In this paper, we further test the 7th order scheme using the hybrid kinetic method. It is indicated that the 7th order hybrid kinetic WENO scheme is more accurate and less dissipative than that adopting conventional FVS techniques and has a good shock-capturing capability, some examples including both one-dimensional and two-dimensional cases are presented.

关键词Gas Kinetic Theory Numerical Dissipation Weno Method Hybrid Numerical Flux High Order Schemes
课题组名称LHD可压缩湍流
收录类别其他
语种英语
文献类型会议论文
条目标识符http://dspace.imech.ac.cn/handle/311007/78029
专题高温气体动力学国家重点实验室
空天飞行科技创新研究中心(筹)
通讯作者Liu HW(刘洪伟)
推荐引用方式
GB/T 7714
Liu HW,Yu ZP,Li XL. A hybrid kinetic WENO scheme for compressible flow simulations[C],2018:ICCFD10-389-2018.
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