Vortex at Hydraulic Intakes with Asymmetric Approach Flows

by John E. Hite, Jr., Washington State Univ, Pullman, United States,
Walter C. Mih, Washington State Univ, Pullman, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering


The formation of vortices at intakes can disrupt normal operating procedures and damage hydraulic machinery. Asymmetric approach flow and a protruding pier (normal wall) contribute to the formation of vortices at many types of intakes. Experimental tests were conducted to evaluate the effects of the approach flow to a horizontal intake. The results indicate a stronger vortex resulted from asymmetric approach flow. The test procedures and set-up are presented along with discussion of results.

Subject Headings: Water intakes | Vortices | Asymmetry | Fluid flow | Hydraulic structures | Hydraulic models | Open channel flow | Water flow

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