Assessment of a Reynolds Stress Closure Model for Appendage-Hull Junction Flows

[+] Author and Article Information
Hamn-Ching Chen

Ocean Engineering Program, Department of Civil Engineering, Texas A & M University, College Station, TX 77843

J. Fluids Eng 117(4), 557-563 (Dec 01, 1995) (7 pages) doi:10.1115/1.2817301 History: Received February 21, 1994; Revised February 07, 1995; Online December 04, 2007


A multiblock numerical method, for the solution of the Reynolds-Averaged Navier-Stokes equations, has been used in conjunction with a near-wall Reynolds stress closure and a two-layer isotropic eddy viscosity model for the study of turbulent flow around a simple appendage-hull junction. Comparisons of calculations with experimental data clearly demonstrate the superior performance of the present second-order Reynolds stress (second-moment) closure over simpler isotropic eddy viscosity models. The second-moment solutions are shown to capture the most important features of appendage-hull juncture flows, including the formation and evolution of the primary and secondary horseshoe vortices, the complex three-dimensional separations, and interaction among the hull boundary layer, the appendage wake and the root vortex system.

Copyright © 1995 by The American Society of Mechanical Engineers
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