HEAT TRANSFER AND FLUID MECHANICS MEASUREMENTS IN TRANSITIONAL BOUNDARY LAYER FLOWS.

T. Wang, T. W. Simon, J. Buddhavarapu

Research output: Contribution to journalConference articlepeer-review

Abstract

Experimental results are presented to document hydrodynamic and thermal development of flat-plate boundary layers undergoing natural transition. Local heat transfer coefficients, skin friction coefficients, and profiles of velocity, temperature, and Reynolds normal and shear stresses are presented. A case with no transition and transitional cases with 0. 68% and 2. 0% free-stream disturbance intensities were investigated. The locations of transition are consistent with earlier data. A late-laminar state with significant levels of turbulence is documented. In late-transitional and early-turbulent flows, turbulent Prandtl number and conduction layer thickness values exceed, and the Reynolds analogy factor is less than, values previously measured in fully turbulent flows.

Original languageEnglish (US)
Pages (from-to)69-79
Number of pages11
JournalNASA Conference Publication
StatePublished - 1985

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