Wind-Tunnel Wall Interference Effects for 20° Cone-Cylinders

1973 ◽  
Vol 10 (10) ◽  
pp. 671-678 ◽  
Author(s):  
JOHN WILLIAM DAVIS ◽  
ROBERT F. GRAHAM
Keyword(s):  
Wind Tunnel ◽  
Interference Effects ◽  
Tunnel Wall

Wind-Tunnel Wall Interference Effects on a Supercritical Airfoil at Transonic Speeds

1977 ◽  
Vol 14 (10) ◽  
pp. 929-935 ◽  
Author(s):  
James A. Blackwell ◽  
Gerald A. Pounds
Keyword(s):  
Wind Tunnel ◽  
Interference Effects ◽  
Tunnel Wall ◽  
Supercritical Airfoil

Analysis of Wind Tunnel Wall Interference Effects on Subsonic Unsteady Airfoil Flows

2007 ◽  
Vol 44 (5) ◽  
pp. 1683-1690 ◽  
Author(s):  
Karthikeyan Duraisamy ◽  
William J. McCroskey ◽  
James D. Baeder
Keyword(s):  
Wind Tunnel ◽  
Interference Effects ◽  
Tunnel Wall

Transonic airfoil calculations including wind tunnel wall-interference effects

AIAA Journal ◽  
1986 ◽  
Vol 24 (8) ◽  
pp. 1378-1380 ◽  
Author(s):  
L. S. King ◽  
D. A. Johnson
Keyword(s):  
Wind Tunnel ◽  
Interference Effects ◽  
Tunnel Wall ◽  
Transonic Airfoil

Development and Validation of a CFD Technique for the Aerodynamic Analysis of HAWT

2009 ◽  
Vol 131 (3) ◽  
Author(s):  
S. Gómez-Iradi ◽  
R. Steijl ◽  
G. N. Barakos
Keyword(s):  
Wind Tunnel ◽  
Wind Turbine ◽  
Wind Turbines ◽  
Turbine Blades ◽  
Wind Tunnel Test ◽  
Unsteady Aerodynamics ◽  
Tunnel Wall ◽  
Local Flow ◽  
Flow Angle ◽  
Thrust And Torque

This paper demonstrates the potential of a compressible Navier–Stokes CFD method for the analysis of horizontal axis wind turbines. The method was first validated against experimental data of the NREL/NASA-Ames Phase VI (Hand, et al., 2001, “Unsteady Aerodynamics Experiment Phase, VI: Wind Tunnel Test Configurations and Available Data Campaigns,” NREL, Technical Report No. TP-500-29955) wind-tunnel campaign at 7 m/s, 10 m/s, and 20 m/s freestreams for a nonyawed isolated rotor. Comparisons are shown for the surface pressure distributions at several stations along the blades as well as for the integrated thrust and torque values. In addition, a comparison between measurements and CFD results is shown for the local flow angle at several stations ahead of the wind turbine blades. For attached and moderately stalled flow conditions the thrust and torque predictions are fair, though improvements in the stalled flow regime are necessary to avoid overprediction of torque. Subsequently, the wind-tunnel wall effects on the blade aerodynamics, as well as the blade/tower interaction, were investigated. The selected case corresponded to 7 m/s up-wind wind turbine at 0 deg of yaw angle and a rotational speed of 72 rpm. The obtained results suggest that the present method can cope well with the flows encountered around wind turbines providing useful results for their aerodynamic performance and revealing flow details near and off the blades and tower.

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