Experimental and computational studies on unsteady aerodynamic heating phenomena in shock reflection processes

Shigeru Aso, Yoshiharu Tanahashi, Anzhong Tan, Masanori Hayashi

Research output: Contribution to journalArticle

Abstract

Experimental and numerical investigations on unsteady aerodynamic heating in shock reflections have been performed. In the experiments surface heat flux changes induced by unsteady shock reflections have been measured. Remarkable characteristics of surface heat transfer change are observed. Two peak heatings due to a Mach stem and a slip layer are observed in complex Mach reflection and double Mach reflection. Numerical simulations of unsteady shock reflections by a ramp have also been conducted. An orthogonal curvilinear grid system generated by conformal mapping is used. The two-dimensional Euler equations and thin-layered Navier-Strokes equations are solved numerically by a TVD scheme in order to simulate unsteady shock reflections and unsteady aerodynamic heating by shock reflections. The calculations have been carried out for various shock reflections. The results show good agreement with the present experiments. The detailed flow structure and parametric change of shape of the slip layer with incident shock Mach number are simulated correctly. Also the calculated peak heatings due to a Mach stem and a slip layer by the impingement of slip layer shows good agreement with experiments.

Original languageEnglish
Pages (from-to)295-308
Number of pages14
JournalMemoirs of the Kyushu University, Faculty of Engineering
Volume50
Issue number3
Publication statusPublished - Sep 1 1990

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Energy(all)
  • Atmospheric Science
  • Earth and Planetary Sciences(all)
  • Management of Technology and Innovation

Cite this