Accession Number : ADA330142

Title :   Computation of High-Speed Turbulent Flow about a Ship Model with a Transom Stern.

Descriptive Note : Final rept.

Corporate Author : NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD HYDROMECHANICS DIRECT ORATE

Personal Author(s) : Haussling, H. J. ; Miller, R. W. ; Coleman, R. M.

PDF Url : ADA330142

Report Date : SEP 1997

Pagination or Media Count : 10

Abstract : This report is a recent paper presented by the authors, slightly modified to include comparison with more recently measured data. The steady flow about a surface ship model with a transom stern moving at high speed is analyzed. Viscous effects are included through the use of a numerical solution of the Reynolds-averaged Navier-Stokes equations subject to nonlinear free-surface boundary conditions. The k-epsilon turbulence model is employed. The structured grid maintains its hull boundary-layer resolution into the wake. This assures the capturing of the strong viscous/free-surface interaction of the boundary-layer wake with the stern wave field, This interaction is demonstrated by comparison with results of inviscid computations. Comparisons with measured data are also presented. The results represent a step forward in a long history of progress on the challenging problem of the computation of flows about transom sterns.

Descriptors :   *NUMERICAL ANALYSIS, *WAKE, *STEADY FLOW, *SHIP STERNS, COMPUTATIONS, OCEAN SURFACE, TURBULENT FLOW, SHIP MODELS, NAVIER STOKES EQUATIONS, INVISCID FLOW, VISCOUS FLOW, BOUNDARY LAYER FLOW.

Subject Categories : Fluid Mechanics
      Marine Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE