Validation of an interactive approach for calculating ship boundary layers and wakes for nonzero Froude number

Y TAHARA; F STERN

doi:10.1016/0045-7930(94)90066-3

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Validation of an interactive approach for calculating ship boundary layers and wakes for nonzero Froude number

Journal article

Peer reviewed

Validation of an interactive approach for calculating ship boundary layers and wakes for nonzero Froude number

Y TAHARA and F STERN

Computers & fluids, Vol.23(6), pp.785-816

1994

DOI: 10.1016/0045-7930(94)90066-3

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Abstract

An interactive approach for calculating ship boundary layers and wakes for nonzero Froude number is validated through detailed comparisons with recent extensive experimental data for the practical 3-D geometry of the Series ship model at both low (0.16) and high (0.316) Froude number. The former case essentially simulates the zero Froude number condition such that the comparisons with the latter case enables the identification of the salient features of the wave-induced effects. Close agreement is demonstrated between the calculations and the data, which supports the conclusion that the present approach can accurately predict ship boundary layers and wakes, including free-surface effects; however, the present detailed comparisons enables a more critical evaluation. Additionally, comparisons are made with inviscid-flow results, which in combination enable an evaluation of the wave/boundary-layer and wake interaction. Lastly, some concluding remarks are made concerning the limitations of the present approach, prognosis and requirements for improvements, relative merits of interactive vs large-domain approaches, and implications with regard to ship design.

Fluid Dynamics

Physics

Applied fluid mechanics

Fundamental areas of phenomenology (including applications)

Turbulent flows, convection, and heat transfer

Exact sciences and technology

Wakes

Jets

Hydrodynamics, hydraulics, hydrostatics

Details

Title: Subtitle: Validation of an interactive approach for calculating ship boundary layers and wakes for nonzero Froude number
Creators: Y TAHARA - Univ. Iowa, inst. hydraulic res., dep. mechanical eng., Iowa City IA 52242-1585, United States
F STERN - Univ. Iowa, inst. hydraulic res., dep. mechanical eng., Iowa City IA 52242-1585, United States
Resource Type: Journal article
Publication Details: Computers & fluids, Vol.23(6), pp.785-816
Publisher: Elsevier Science; Oxford
DOI: 10.1016/0045-7930(94)90066-3
ISSN: 0045-7930
eISSN: 1879-0747
Language: English
Date published: 1994
Academic Unit: Mechanical Engineering
Record Identifier: 9984064555802771

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