Computational  Modelling  of  Pitching  Airfoil  Flows


Researcher:    M. Schatz,  U. Bunge,  T. Rung 

 


CASE A, deep-stall case, mean angle of attack 15o

 
  
 Reynolds number  1.95*106
 Mach number  0.29
 mean angle of attack  15o
 pitching angle                        4.2osin(wt)
 reduced frequency   (k=0.5wLref/Uref)  0.1
A.R. Piziali:  An experimental investigation of 2D and 3D oscillating wing aerodynamics for a range of angles of attack including stall, NASA TM 4632, 1994.
  
animated vorticity contours (LLR k-w Modell): 
ANIM. GIF(1.26M)     MPEG(280 K) 		 more information: 
Aerodynamics, unsteady    SALSA    EASM    LLR
 
The below given results display the amount of predictive accuracy obtained from different linear Boussinesq-viscosity models (SA & SALSA: one-equation models;   Wilcox & LLR: two-equation k-w models) for these type of flows. Further details are available on LINK. 

unsteady lift coefficient, 13k to load enlargement unsteady pitching moment coefficient, 13k to load enlargement unsteady drag coefficient, 13k to load enlargement
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Last modified: Thu Feb 10 10:23:54 CET 2000