Investigation of the flow structures in supersonic free and impinging jet flows

C. Chin, M. Li, C. Harkin, T. Rochwerger, Leon Zen Hsien Chan, A. Ooi, A. Risborg, J. Soria

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

A numerical study of compressible jet flows is carried out using Reynolds averaged Navier-Stokes (RANS) turbulence models such as k-É and k-ω-SST. An experimental investigation is performed concurrently using high-speed optical methods such as Schlieren photography and shadowgraphy. Numerical and experimental studies are carried out for the compressible impinging at various impinging angles and nozzle-to-wall distances. The results from both investigations converge remarkably well and agree with experimental data from the open literature. From the flow visualizations of the velocity fields, the RANS simulations accurately model the shock structures within the core jet region. The first shock cell is found to be constraint due to the interaction with the bow-shock structure for nozzle-to-wall distance less than 1.5 nozzle diameter. The results from the current study show that the RANS models utilized are suitable to simulate compressible free jets and impinging jet flows with varying impinging angles.

Original languageEnglish
Article number31202
JournalJournal of Fluids Engineering, Transactions of the ASME
Volume135
Issue number3
DOIs
Publication statusPublished - 22 Apr 2013

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Flow structure
Nozzles
Photography
Flow visualization
Turbulence models

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Cite this

Chin, C. ; Li, M. ; Harkin, C. ; Rochwerger, T. ; Chan, Leon Zen Hsien ; Ooi, A. ; Risborg, A. ; Soria, J. / Investigation of the flow structures in supersonic free and impinging jet flows. In: Journal of Fluids Engineering, Transactions of the ASME. 2013 ; Vol. 135, No. 3.
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Investigation of the flow structures in supersonic free and impinging jet flows. / Chin, C.; Li, M.; Harkin, C.; Rochwerger, T.; Chan, Leon Zen Hsien; Ooi, A.; Risborg, A.; Soria, J.

In: Journal of Fluids Engineering, Transactions of the ASME, Vol. 135, No. 3, 31202, 22.04.2013.

Research output: Contribution to journalArticle

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