In marine engineering, optimizing the performance of vessels is a key issue, particularly in increasing fuel efficiency, reducing operating costs, and minimizing environmental impact. One of the most critical determinants of vessel efficiency is hull resistance, which directly affects fuel consumption, power requirements, and cruising speed. We aim to investigate how surface roughness affects hull flow resistance, to quantify the drag variation at different surface roughness levels using special wall functions that reproduce boundary layer dynamics. This approach involves the complex interaction between the intricate complexity of roughness and the nonlinear pressure drag effects on the hull. The KVLCC2 ship model is used as a representative prototype in the CFD analysis based on the RANS equations and the k-omega SST model to independently evaluate the roughness effects on individual ship sections. The comparative analysis with empirical data reveals the complex relationship between surface roughness and ship resistance and provides insights for ship design and operational improvement. The study investigates the interaction between drag coefficient and vessel performance to improve hydrodynamic efficiency.


    Access

    Access via TIB


    Export, share and cite



    Title :

    RANS study of surface roughness effects on ship resistance


    Contributors:

    Published in:

    Publication date :

    2024-08-30


    Size :

    22 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





    Ship resistance by free-surface RANS computations

    Azcueta, R. | Tema Archive | 2000


    Experimental evaluation of ship resistance for RANS code validation

    Avanzini, G. / Benedetti, L. / Penna, R. | Tema Archive | 2000


    Study of influence of roughness on ship resistance

    Amtsberg, H. | Engineering Index Backfile | 1937


    RANS Application on Ship Manoeuvring Motion

    Gao, Q. / Shigunov, V. / Vassalos, D. et al. | British Library Conference Proceedings | 2005


    Simulation of Unsteady Ship Maneuvering Using Free-Surface RANS Solver

    Jacquin, E. / Guillerm, P.E. / Drouet, A. et al. | British Library Conference Proceedings | 2007