The rapid expansion of a turbulent boundary layer in a supersonic flow

Douglas R. Smith, Alexander J. Smits

Research output: Contribution to journalArticlepeer-review

60 Scopus citations


Rapid Distortion Approximations (RDA) may be used to simplify the Reynolds stress equations in rapidly distorted flows, as suggested by Dussauge and Gaviglio (1987). These approximations neglect diffusive and dissipative terms while retaining the production and pressure terms. The retained terms are then modeled as functions of the Reynolds stress tensor and gradients of the mean flow. The models for the pressure-strain term as developed by Lumley (1978) and Shih and Lumley (1985) are evaluated by comparing the calculated results with experimental data for the case of a Mach 2.84 turbulent boundary layer in a 20° centered expansion. The agreement between computed and experimentally obtained Reynolds stresses was found to be encouraging.

Original languageEnglish (US)
Pages (from-to)319-328
Number of pages10
JournalTheoretical and Computational Fluid Dynamics
Issue number5-6
StatePublished - Aug 1991

All Science Journal Classification (ASJC) codes

  • Computational Mechanics
  • Condensed Matter Physics
  • General Engineering
  • Fluid Flow and Transfer Processes


Dive into the research topics of 'The rapid expansion of a turbulent boundary layer in a supersonic flow'. Together they form a unique fingerprint.

Cite this