Compression Pad Cavity Heating Augmentation on Orion Heat Shield | Zendy

Brian R. Hollis | Zendy

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Compression Pad Cavity Heating Augmentation on Orion Heat Shield

Author(s) -

Brian R. Hollis

Publication year - 2011

Publication title -

journal of thermophysics and heat transfer

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.548

H-Index - 67

eISSN - 1533-6808

pISSN - 0887-8722

DOI - 10.2514/1.48076

Subject(s) - heat shield , materials science , aerodynamic heating , boundary layer , laminar flow , compression (physics) , mechanics , turbulence , shield , mach number , reynolds number , heat transfer , composite material , geology , physics , petrology

DOI: 10.2514/1.48076An experimental study has been conducted to assess the effects of compression pad cavities on the aeroheatingenvironment of the Project Orion Crew Exploration Vehicle heat shield. Testing was conducted in Mach 6 and 10perfect-gaswindtunnelsto obtainheating measurements in andaroundthecompression padscavities usingglobalphosphor thermography. Data were obtained over a wide range of Reynolds numbers that produced laminar,transitional,andturbulentowwithinanddownstreamofthecavities.Theeffectsofcavitydimensionsonboundary-layertransitionandheatingaugmentationlevelswerestudied.Correlationsweredevelopedfortransitiononsetandfor the average cavity-heating augmentation.

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