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  • 1
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    Transonic potential flow and coordinate generation for bodies in a wind tunnel (1982)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: An accurate method has been developed for computation of transonic potential flow about a 2-D lifting airfoil or an axisymmetric body in a wind tunnel. The computational mesh is nearly orthogonal everywhere and is generated by a sequence of Schwarz-Christoffel transformations and shearings to obtain an '0' grid near the body. A conservative finite-volume scheme for the full-potential equation and exact boundary conditions is used together with 'retarded' density to solve efficiently transonic flow with embedded shocks and large regions of supersonic flow. Supersonic free-stream flows are also solved with captured bow shocks and embedded subsonic regions.
    Keywords: AERODYNAMICS
    Type: AIAA PAPER 82-0223 , Aerospace Sciences Meeting; Jan 11, 1982 - Jan 14, 1982; Orlando, FL
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
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    Finite-volume scheme for transonic potential flow about airfoils and bodies in an arbitrarily-shaped channel (1985)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: A conservative finite-volume difference scheme is developed for the potential equation to solve transonic flow about airfoils and bodies in an arbitrary channel. The scheme employs a mesh which is a nearly-conformal 'O' mesh about the airfoil and nearly orthogonal at the channel walls. The mesh extends to infinity upstream and downstream, where the mapping is singular. Special procedures are required to treat the singularities at infinity, including computation of the metrics near those points. Channels with exit areas different from inlet areas are solved; a body with a sting mount is an example of such a case.
    Keywords: AERODYNAMICS
    Type: Symposium on Numerical and Physical Aspects of Aerodynamic Flows; Jan 21, 1985 - Jan 24, 1985; Long Beach, CA
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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