IMECH-IR  > 高温气体动力学国家重点实验室
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)
Source PublicationComputers & Fluids
2015-01-05
Volume106Pages:12-18
ISSN0045-7930
AbstractA 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.
KeywordHypervelocity Test Flow Dcd Scheme Flux-splitting Spurious Oscillation
Subject Area流体力学
DOI10.1016/j.compfluid.2014.09.039
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000346213200002
WOS KeywordSHOCK-CAPTURING SCHEMES ; EXPANSION TUBE ; OSCILLATIONS ; EVOLUTION
WOS Research AreaComputer Science ; Mechanics
WOS SubjectComputer Science, Interdisciplinary Applications ; Mechanics
Funding OrganizationThe work is supported by the National Natural Science Foundation of China under Grant Nos. 11142006 and 90916028.
DepartmentLHD激波与爆轰物理
Classification二类/Q2
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/49306
Collection高温气体动力学国家重点实验室
Corresponding AuthorHu 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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