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RESEARCH PAPERS

Hydrodynamic Design Considerations for Hydroacoustic Facilities: Part I—Flow Quality

[+] Author and Article Information
J. M. Wetzel, R. E. A. Arndt

St. Anthony Falls Hydraulic Laboratory, University of Minnesota, Minneapolis, MN 55414-2196

J. Fluids Eng 116(2), 324-331 (Jun 01, 1994) (8 pages) doi:10.1115/1.2910275 History: Received January 11, 1993; Revised September 24, 1993; Online May 23, 2008

Abstract

Design studies are described for two recently completed large scale hydroacoustic test facilities (one of which is the world’s largest). These recirculating water tunnels have a different configuration than conventional tunnels, and special hydrodynamic design studies were required to evaluate and optimize the performance of some critical components. This paper considers the flow quality in the test section as influenced by the design of the contraction and the turbulence management system. Numerical modeling and experimental work were used to arrive at an acceptable nonsymmetrical nozzle design. Studies were also made of a turbulence management system using honeycombs rather than screens as typically used. Although design goals for turbulence levels were met, this study indicated that additional research in the area of turbulence management is necessary before there is a complete understanding of the overall process of turbulence attenuation.

Copyright © 1994 by The American Society of Mechanical Engineers
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