Simulation of shock wave propagation in a duct with a side branch

D. Igra, O. Igra

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Experimental studies conducted during the 70s and 80s of the previous century are numerically simulated. We examine a horizontal duct with a vertical branch having a circular cross section whose diameter is 5 cm. These experiments were conducted by the late Dr Heilig in the Ernst-Mach-Institute (private communication). In both segments of the branched duct pressure transducers were installed. They were used for recording the pressure histories and for deducing the traveling shock wave speed. These results were compared with the present numerical simulation. The numerical simulations were conducted using the commercial code Fluent with the density-based AUSM solver. The solver is second order in both space and time. It is apparent from the results obtained that good agreement exists between the recorded pressure histories and their simulations. Based on the good agreement between recorded and simulated pressures a numerical study was conducted by comparison between two similar branched ducts, one having a circular cross section while the other has a rectangular cross section. Also, the effect that changes in the branched segment orientation have on the resulting flow field were investigated.

Original languageEnglish
Pages (from-to)2226-2236
Number of pages11
JournalProceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering
Volume228
Issue number12
DOIs
StatePublished - 12 Oct 2014

Keywords

  • Shock diffraction
  • Shock wave propagation in a duct
  • Shock waves in tunnels

ASJC Scopus subject areas

  • Aerospace Engineering
  • Mechanical Engineering

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