An investigation of separation models for the prediction of CJ sub max
An investigation of separation models for the prediction of CJ sub max
- New search for: Dvorak, F.A.
- New search for: Maskew, B.
- New search for: Rao, B.M.
- New search for: Dvorak, F.A.
- New search for: Maskew, B.
- New search for: Rao, B.M.
Steady and unsteady analyses and computational methods have been developed for calculating the flow about two-dimensional airfoils up to and beyond the stall. The steady-flow method adopts an iterative procedure between the potential flow and boundary layer solutions. The separated region is modeled in the potential flow analysis using free vortex sheets which require an inner iteration to establish their shapes. The free vortex sheet length is an important parameter in the potential flow calculation. Calculated and exmperimental results are compared for a GA(W)-1 airfoil and for several NACA airfoil series over a range of Reynolds numbers. The calculated results, which include pressure, distributions as well as force and moment characteristics, are in very close agreement with experimental results, and are obtained for reasonable computing costs; typically, one incidence data point takes 15 to 20 c.p. seconds on a CDC 7600 computer. (DePo)
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An investigation of separation models for the prediction of CJ sub max
Untersuchung des Trennungsmodells fuer die Voraussage des CI sub max Wertes
US Government Reports ; Apr ; 1-58
1979
58 Seiten
Report
English
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