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Volume 12, Issue 23 (9-2016)                   Marine Engineering 2016, 12(23): 81-92 | Back to browse issues page

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Ahmadzadehtalatapeh M, Mousavi M. Numerical Simulation of Foulings on the Marine Vessels Body and Application of Newly Recommended Techniques to Reduce the Resulting Drag Force. Marine Engineering 2016; 12 (23) :81-92
URL: http://marine-eng.ir/article-1-454-en.html
Numerical Simulation of Foulings on the Marine Vessels Body and Application of Newly Recommended Techniques to Reduce the Resulting Drag Force
Mohammad Ahmadzadehtalatapeh * 1, Majid Mousavi1
1- Chabahar Maritime University
Abstract:   (5704 Views)

In this research, the effects of foulings on the outer surface of a marine vessel have been studied using the Computational Fluid Dynamics (CFD) methods. To this end, a proper turbulence model was considered and validated for the simulations. The simulation results for different fouling grades indicated that existing of a thin layer of slime could make 4.58 % increase in drag force; however, foulings on the outer surface of a marine vessel could make about 40% increase in drag force. In this study, the application of modern coatings (surface covers) for reducing the foulings and the resulting drag force was also investigated and the results were presented. Based on the simulation results, application of the coatings, the foulings resulted drag force would decrease about 37%. In addition, wave patterns, pressure distribution, drag coefficient distribution, and turbulent distribution profile were investigated on the free surface.

Keywords: Drag Reduction, Fouling, Marine Vessel, Simulation, Turbulence Model
Full-Text [PDF 1677 kb]   (2345 Downloads)    
Type of Study: Research Paper | Subject: Ship Hydrodynamic
Received: 2015/12/29 | Accepted: 2016/10/30
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