Publications of Dr. Kevin D. Jones:
Presented at the 8th International Symposium on Unsteady Aerodynamics and Aeroelasticity of Turbomachines,
Stockholm, Sweden, Sept., 1997.
Title: On the Prediction of Dynamic Stall Onset on Airfoils in Low Speed Flow
Authors: K.D. Jones and M.F. Platzer
Abstract: A computational approach is described for the rapid and systematic prediction
and evaluation of the onset of dynamic stall due to rapid incidence changes or
unsteady pitch or plunge motions. The method combines an unsteady, two-dimensional
panel code with a two-dimensional boundary-layer code. The panel code provides
incompressible, inviscid flowfields about arbitrary airfoils undergoing prescribed
motions. The boundary-layer code computes laminar, transitional and turbulent regimes.
Presented results demonstrate that the delay in dynamic stall onset is directly related
to the dynamic pressure lag, in agreement with previous Navier-Stokes simulations.
Also, results are presented showing the effect of airfoil shape and Reynolds number on
the onset of dynamic stall.
Download a complete copy of the paper in PostScript (compressed) (62kb) format
or PDF (188kb) format.
|
