Comparison of experimental and computational aerothermodynamics of a 70-deg sphere-cone | Zendy

Brian R. Hollis | Zendy; John Perkins | Zendy

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Comparison of experimental and computational aerothermodynamics of a 70-deg sphere-cone

Author(s) -

Brian R. Hollis,

John Perkins

Publication year - 1996

Publication title -

nasa sti repository (national aeronautics and space administration)

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.1996-1867

Subject(s) - freestream , mechanics , wake , hypersonic speed , angle of attack , expansion tunnel , hypersonic flow , heat transfer , materials science , aerodynamics , aerospace engineering , stagnation enthalpy , physics , mach number , engineering , turbulence , reynolds number

Numerical solutions for hypersonic flows of carbon-dioxide and air around a 70-deg sphere-cone have been computed using an axisymmetric non-equilibrium Navier-Stokes solver. Freestream flow conditions for these computations were equivalent to those obtained in an experimental blunt-body heat-transfer study conducted in a high-enthalpy, hypervelocity expansion tube. Comparisons have been made between the computed and measured surface heat-transfer rates on the forebody and afterbody of the sphere-cone and on the sting which supported the test model. Computed forebody heating rates were within the estimated experimental uncertainties of 10% on the forebody and 15% in the wake except for within the recirculating flow region of the wake.

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