Convection velocity in supersonic turbulent boundary layers

Eric F. Spina, John F. Donovan, Alexander J. Smits

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


The convection velocity of large-scale organized motions was measured in a Mach 3 boundary layer using streamwise-separated hot wires. The broadband convection velocity, determined from space-time correlations, is 0.9U across the entire outer region of the boundary layer. The convection velocity of individual structures was deduced using a pattern recognition technique, and this revealed that the majority of the large-scale structures convect at nearly the same velocity. A comparison of the present results to previous measurements indicates negligible Reynolds number and Mach number effects on convection velocity.

Original languageEnglish (US)
Pages (from-to)3124-3126
Number of pages3
JournalPhysics of Fluids A
Issue number12
StatePublished - 1991

All Science Journal Classification (ASJC) codes

  • General Engineering


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