An Investigation of the Corner Secondary Flows Generated in Planar Nozzles

[+] Author and Article Information
W. B. Wagner

Pratt and Whitney Aircraft, East Hartford, Conn.

J. A. Owczarek

Department of Mechanical Engineering and Mechanics, Lehigh University, Bethlehem, Pa.

J. Fluids Eng 96(3), 234-245 (Sep 01, 1974) (12 pages) doi:10.1115/1.3447146 History: Received August 17, 1973; Online October 12, 2010


An experimental study was made of the total pressure distribution in the corner secondary flow generated in two planar nozzles having different contours. Also, an analysis was made of the extent of the sidewall boundary layer migration caused by the cross flow and of its accumulation in the corner between the sidewall and horizontal nozzle walls at exits of planar nozzles. A comparison of the calculated and experimental results was made. Reasonably good agreement was found between the analytical and experimental results. The Reynolds numbers considered in this study, based on the average flow speed at nozzle exits and on the nozzle widths, were 5000, 10,000, and 20,000. The nozzle aspect ratios were 4 and 2.

Copyright © 1974 by ASME
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