A test programme of surface pressure measurements on three car shapes at yaw angles from 0 to 30 deg in a 1/5th-scale slotted-wall test section is described. Comparison are made with corresponding 'reference' results. The low-blockage reference results were obtained in an aeronautical wind tunnel with a solid-wall test section, using the same models and under similar aerodynamic simulation conditions. The comparison verify results of our previous work (at zero yaw) in slotted-wall test sections. Extremely good vehicle surface pressure distributions can be obtained from tests at high blockage in appropriately designed slotted-wall test sections, even at high yaw angles. The important implication of the present results is that based on surface pressures, the overall size of a facility to give minimal wall-interference can be considerably reduced from the size of a solid-wall facility which would give an automotive aerodynamic simulation of comparable accuracy.
Slotted-wall test section for automotive aerodynamic tests at yaw
Pruefteil mit geschlitzter Wandung fuer aerodynamische Versuche bei schraeger Anstroemung im Automobilbau
SAE-Papers ; 1-12
1983
12 Seiten, 15 Bilder, 12 Quellen
Conference paper
English
Slotted-Wall Test Section for Automotive Aerodynamic Tests at Yaw
SAE Technical Papers | 1983
|Slotted-Wall Test Section for Automotive Aerodynamik Tests at Yaw
Automotive engineering | 1983
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