Hypervelocity flow visualization experiment in the JF-16 expansion tunnel

Kai Zhou, Zijian Zhang, Xiaojun Zhu, Dongbin Ou, Zongmin Hu, Zonglin Jiang

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

An expansion tube/tunnel is a ground-based test facility to generate hypervelocity test flow for the study of reentry physics. A detonation-driven expansion tunnel (JF-16) has been built at the State Key Laboratory of High-temperature Gas Dynamics (LHD), in order to generate relatively steady and clean test flows at high enthalpies. However, the extremely short test time leads to critical difficulties inflow analysis and measurement. Numerical simulation is a powerful assistant analysis tool for the study of hypervelocity test flow and its diagnostics. With the development of hypervelocity optical diagnostic technique, a flow visualization system has been set up to capture the flow field structure. The establishment and development processes of the flow field for expansion tunnel can be analyzed directly through the images obtained by the high-speed camera. At the same time, the standoff distance of the detached shock wave and angle of the oblique shock wave have been measured to validate the numerical techniques.

Original languageEnglish
Title of host publication19th International Conference on the Methods of Aerophysical Research, ICMAR 2018
EditorsVasily Fomin
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735417472
DOIs
Publication statusPublished - 2 Nov 2018
Externally publishedYes
Event19th International Conference on the Methods of Aerophysical Research, ICMAR 2018 - Akademgorodok, Novosibirsk, Russian Federation
Duration: 13 Aug 201819 Aug 2018

Publication series

NameAIP Conference Proceedings
Volume2027
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference19th International Conference on the Methods of Aerophysical Research, ICMAR 2018
Country/TerritoryRussian Federation
CityAkademgorodok, Novosibirsk
Period13/08/1819/08/18

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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