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  • 1
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    Non-reacting and equilibrium chemically reacting turbulent boundary-layer flows. (1973)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: Turbulent boundary-layer flows of nonreacting gases are predicted for both internal (nozzle) and external flows. Effects of favorable pressure gradients on two eddy viscosity models were studied in rocket and hypervelocity wind tunnel flows. Nozzle flows of equilibrium air with stagnation temperatures up to 10,000 K were computed. Predictions of equilibrium nitrogen flows through hypervelocity nozzles were compared with experimental data. A slender spherically blunted cone was studied at 70,000 ft altitude and 19,000 ft/sec in the earth's atmosphere. Comparisons with available experimental data showed good agreement. A computer program was developed and fully documented during this investigation for use by interested individuals.
    Keywords: FLUID MECHANICS
    Type: International Journal for Numerical Methods in Engineering; 7; 1, 19; 1973
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Laminar or turbulent boundary-layer flows of perfect gases or reacting gas mixtures in chemical equilibrium (1971)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Turbulent boundary layer flows of non-reacting gases are predicted for both interal (nozzle) and external flows. Effects of favorable pressure gradients on two eddy viscosity models were studied in rocket and hypervelocity wind tunnel flows. Nozzle flows of equilibrium air with stagnation temperatures up to 10,000 K were computed. Predictions of equilibrium nitrogen flows through hypervelocity nozzles were compared with experimental data. A slender spherically blunted cone was studied at 70,000 ft altitude and 19,000 ft/sec. in the earth's atmosphere. Comparisons with available experimental data showed good agreement. A computer program was developed and fully documented during this investigation for use by interested individuals.
    Keywords: FLUID MECHANICS
    Type: NASA-CR-1893
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Numerical solution of the steady-state Navier-Stokes equations for hypersonic flow about blunt axisymmetric bodies (1974)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The steady-state Navier-Stokes equations are solved for hypersonic flow about blunt axisymmetric bodies. The equations of motion are solved by successive approximations using an implicit finite-difference scheme. The results are compared with viscous shock-layer theory, experimental data, and time-dependent solutions of the Navier-Stokes equations. It is demonstrated that viscous shock-layer theory is sufficiently accurate for the range of flight conditions normally encountered by entry vehicles.
    Keywords: FLUID MECHANICS
    Type: NASA-TM-X-71977 , Anniv. Meeting of the Soc. of Eng. Sci.; Jan 01, 1973
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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