An improved weighted essentially non-oscillatory scheme with modified smoothness indicator tau and adaptive index p
文献类型:期刊论文
作者 | Li X(李欣)2,3; Yu ZP(于长平)3; Li L1; Li XL(李新亮)2,3; Li XL(李新亮); Yu ZP(于长平); Li X(李欣) |
刊名 | INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS |
出版日期 | 2020-04-23 |
页码 | 15 |
ISSN号 | 1061-8562 |
关键词 | WENO scheme high resolution shock-capturing smoothness indicator adaptive optimisation |
DOI | 10.1080/10618562.2020.1754403 |
通讯作者 | Li, Xin-Liang(lixl@imech.ac.cn) |
英文摘要 | The resolution and robustness properties of a numerical scheme are two mutually restricted aspects for the detailed simulation of complex flows. In the present paper, an improved seventh-order finite difference weighted essentially non-oscillatory scheme (WENO-PR) is developed by distributing larger weights to the less smooth stencils. To meet the optimization requirements, the high-order smoothness indicator tau is modified by some constraints and a real-number index factor p is designed under the control of a wavenumber identifier. The results show that the modifications in the proposed scheme improve self-adaptation features in the smooth and discontinuous regions, which greatly balance the numerical resolution and robustness. Compared with the existing schemes such as WENO-Z and WENO-JS, the WENO-PR is more flexible, accurate and robust. Several one- and two-dimensional numerical tests are performed to confirm the high-resolution capability and the non-oscillatory property of the proposed scheme. |
分类号 | Q3 |
WOS关键词 | TARGETED ENO SCHEMES ; DIRECT NUMERICAL-SIMULATION ; HIGH-ORDER ; EFFICIENT IMPLEMENTATION ; WENO SCHEMES ; BOUNDARY-LAYER ; RESOLUTION ; ACCURACY ; FAMILY |
资助项目 | National Key Research and Development Program of China[2019YFA0405300] ; National Key Research and Development Program of China[2016YFA0401200] ; NSFC[91852203] ; Science Challenge Project[TZ2016001] ; Strategic PriorityResearch Program of Chinese Academy of Sciences[XDC01000000] |
WOS研究方向 | Mechanics ; Physics |
语种 | 英语 |
WOS记录号 | WOS:000531930100001 |
资助机构 | National Key Research and Development Program of China ; NSFC ; Science Challenge Project ; Strategic PriorityResearch Program of Chinese Academy of Sciences |
其他责任者 | Li, Xin-Liang |
源URL | [http://dspace.imech.ac.cn/handle/311007/82030] |
专题 | 力学研究所_高温气体动力学国家重点实验室 |
作者单位 | 1.Inst Appl Phys & Computat Math, Lab Computat Phys, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China; 3.Chinese Acad Sci, Inst Mech, LHD, Beijing, Peoples R China; |
推荐引用方式 GB/T 7714 | Li X,Yu ZP,Li L,et al. An improved weighted essentially non-oscillatory scheme with modified smoothness indicator tau and adaptive index p[J]. INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS,2020:15. |
APA | 李欣.,于长平.,Li L.,李新亮.,Li XL.,...&Li X.(2020).An improved weighted essentially non-oscillatory scheme with modified smoothness indicator tau and adaptive index p.INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS,15. |
MLA | 李欣,et al."An improved weighted essentially non-oscillatory scheme with modified smoothness indicator tau and adaptive index p".INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS (2020):15. |
入库方式: OAI收割
来源:力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。