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The surface roughness effects in computation of the turbulent boundary layer on slender ship-hull

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Abstract

An improved version of an integral method for computing turbulent boundary layers on a slender ship-hull with auxiliary shape parameter and lag-entrainment concept is suggested to account more effectively for the surface roughness contribution to the friction resistance coefficient. Comparisons with wind-tunnel model test results show some significant improvements. The improved version is then employed to test the consequences of zonal hull roughening along with streamline verifying and modifying an approximate technique of scaling model-to-ship roughness effects upon the hull friction coefficient.

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Authors and Affiliations

  1. Marthe Engineering Dept., National Fisheries University of Pusan, 608-737, Pusan, Korea

    Si-Young Kim

  2. Mechanical Engineering Dept., The University of Liverpool, L69, Liverpool, U.K.

    A. K. Lewkowicz

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  1. Si-Young Kim
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  2. A. K. Lewkowicz
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Kim, SY., Lewkowicz, A.K. The surface roughness effects in computation of the turbulent boundary layer on slender ship-hull. KSME Journal 5, 65–70 (1991). https://doi.org/10.1007/BF02953603

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