Computation of saddle point of attachment
Computation of saddle point of attachment
Two numerical codes are used for a wide range of Mach numbers, Reynolds numbers, grid sizes, and numbers of grid points to confirm the existence of the saddle point of attachment in the flow before an obstacle. The computational results near the critical point are theoretically analyzed. The impact and significance of the saddle point of attachment to the interpretation of experimental surface flow patterns and the definitions of lines of separation and attachment are discussed. A line of oil accumulating from both sides can be either a line of separation or a line of attachment, depending on the characteristics of the saddle point.
- Rockwell International United States
- National Aeronautics and Space Administration United States
- Ames Research Center United States
- NSWC Carderock Division United States
- Naval Surface Warfare Center United States
flow before an obstacle, lines of separation and attachment, characteristics, Boundary-layer theory for compressible fluids and gas dynamics, critical point, Boundary-layer theory, separation and reattachment, higher-order effects, Finite difference methods applied to problems in fluid mechanics
flow before an obstacle, lines of separation and attachment, characteristics, Boundary-layer theory for compressible fluids and gas dynamics, critical point, Boundary-layer theory, separation and reattachment, higher-order effects, Finite difference methods applied to problems in fluid mechanics
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