| On the numerical technique for the simulation of hypervelocity test flows | |
Hu ZM(胡宗民) ; Wang C(王春); Jiang ZL(姜宗林); Khoo BC; Hu ZM(胡宗民)
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| Source Publication | Computers & Fluids
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| 2015-01-05 | |
| Volume | 106Pages:12-18 |
| ISSN | 0045-7930 |
| Abstract | A shock-expansion tube (SET) is one of the major ground test facilities to generate really high-enthalpy and hypervelocity test flows. However, the strong shock wave may give rise to chemically non-equilibrium characteristic flow feature in a SET. In addition, the test time duration of a SET is extremely short which leads to difficulties in measurements and flow diagnostics. It is therefore appropriate to consider employing CFD approach, coupled with available experimental data, to determine the characteristic of the test flow in a SET. The dispersion-controlled dissipative scheme (DCD) is used for our simulation of chemically non-equilibrium flows associated with a SET. In this paper, the several numerical issues which occur in the computational investigation of the test flow in our SET facility are discussed. A new flux splitting algorithm based on local characteristics is worked out for the DCD scheme to mitigate any spurious oscillations. With the mentioned updated DCD scheme, the computed results compare well with the experimental data provided for validation. (C) 2014 Elsevier Ltd. All rights reserved. |
| Keyword | Hypervelocity Test Flow Dcd Scheme Flux-splitting Spurious Oscillation |
| Subject Area | 流体力学 |
| DOI | 10.1016/j.compfluid.2014.09.039 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000346213200002 |
| WOS Keyword | SHOCK-CAPTURING SCHEMES ; EXPANSION TUBE ; OSCILLATIONS ; EVOLUTION |
| WOS Research Area | Computer Science ; Mechanics |
| WOS Subject | Computer Science, Interdisciplinary Applications ; Mechanics |
| Funding Organization | The work is supported by the National Natural Science Foundation of China under Grant Nos. 11142006 and 90916028. |
| Department | LHD激波与爆轰物理 |
| Classification | 二类/Q2 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/49306 |
| Collection | 高温气体动力学国家重点实验室 |
| Corresponding Author | Hu ZM(胡宗民) |
| Recommended Citation GB/T 7714 | Hu ZM,Wang C,Jiang ZL,et al. On the numerical technique for the simulation of hypervelocity test flows[J]. Computers & Fluids,2015,106:12-18. |
| APA | Hu ZM,Wang C,Jiang ZL,Khoo BC,&胡宗民.(2015).On the numerical technique for the simulation of hypervelocity test flows.Computers & Fluids,106,12-18. |
| MLA | Hu ZM,et al."On the numerical technique for the simulation of hypervelocity test flows".Computers & Fluids 106(2015):12-18. |
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| computers&Fluids-201（1617KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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