Secondary Flow in Noncircular Conduits

by Robert Gerard, Research Officer; Alberta Research Council, Transportation and Surface Water Engrg. Div., Edmonton, Alberta, Canada,

Serial Information: Journal of the Hydraulics Division, 1978, Vol. 104, Issue 5, Pg. 755-773

Document Type: Journal Paper


A requirement for calculating an accurate velocity distribution in noncircular conduits is a knowledge of the secondary flow distribution in these conduits. The cause of these secondary flows is considered in this paper and a simple momentum transfer model for Reynolds stresses is used to effect a solution for the secondary flow in a square duct. The calculated secondary flows are similar in magnitude and direction to measurements reported in the literature.

Subject Headings: Velocity distribution | Secondary flow | Conduits | Flow distribution | Flow measurement | Fluid velocity | Reynolds stress | Duct

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