Large-eddy simulation of pseudo-shock wave in a square duct

S. Lee, J. Watanabe, T. Kouchi, K. Takita, G. Masuya

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Large-eddy simulation (LES) of Pseudo-Shock Wave (PSW) in a square duct was perfomed to study the three-dimensional turbulent structure. A flow with the PSW in the square section duct produced by the high back pressure was reproduced using LES. The inflow Mach number was 2.5 and the inflow boundary layer of 4.2mm thick. The incoming boundary layer for a square duct was established using the multi rescaling method. The Mach number distribution, schlieren image, wall pressure, and velocity data obtained from the LES were compared with the past experimental data. The shock train structure observed in the experiment was well reproduced by the LES. The averaged wall pressure and streamwise velocity distributions agreed well between the LES and the experiments. Also, the distributions of intensity and spatial correlation of velocity fluctuation reasonably agreed between the LES and the experiment, although some differences were observed in the velocity fluctuation intensity distribution at the position of front shock wave.

Original languageEnglish
Title of host publication18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012
Publication statusPublished - Dec 1 2012
Event18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012 - Tours, France
Duration: Sep 24 2012Sep 28 2012

Publication series

Name18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012

Other

Other18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012
CountryFrance
CityTours
Period9/24/129/28/12

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering
  • Control and Systems Engineering

Fingerprint Dive into the research topics of 'Large-eddy simulation of pseudo-shock wave in a square duct'. Together they form a unique fingerprint.

  • Cite this

    Lee, S., Watanabe, J., Kouchi, T., Takita, K., & Masuya, G. (2012). Large-eddy simulation of pseudo-shock wave in a square duct. In 18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012 (18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012).