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Volume 19, Issue 40 (11-2023)                   Marine Engineering 2023, 19(40): 63-74 | Back to browse issues page

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Parsaei A, Forouzani H, Binesh A. Experimental and Numerical analysis of an unmanned twin-hull surface vessel (USV) hydrodynamic resistance and behavior. Marine Engineering 2023; 19 (40) :63-74
URL: http://marine-eng.ir/article-1-1063-en.html
Experimental and Numerical analysis of an unmanned twin-hull surface vessel (USV) hydrodynamic resistance and behavior
Alireza Parsaei1 , Hassan Forouzani * 1, Alireza Binesh1
1- Malek ashtar university of technology
Abstract:   (1486 Views)
In this study, the total resistance and effects of different parameters on the hydrodynamic behavior of a twin-hull unmanned surface vessel have been investigated using the numerical method (CFD) using STAR-CCM+ and the experimental method (towing tank test) in Kowsar towing tank (KTT). Hull has been tested in two tonnages and at four different speeds. The comparison of the results of both methods shows an eligible match between the results of experimental and numerical analysis. Finally, it was found that vessel weight increasing to its maximum value at the operating speed will only increase the total resistance by 17%. Also, during the experiments, it was found that despite the vessel's design for low operating speeds, it is possible to achieve planning speeds or higher. Still, due to a lack of hydrodynamic lift generation at high speeds, hydrodynamic resistance will increase significantly. An increase of 4 kg in hull mass will increase the pitch angle up to 9%, the maximum pressure on the body up to 12%, and the wave height near the body up to 9%.
Keywords: Unmanned multi-hull surface vessel (USV), Towing tank, Computational fluid dynamics, Hydrodynamic Resistance, STAR-CCM+
Full-Text [PDF 1895 kb]   (490 Downloads)    
Type of Study: Research Paper | Subject: Ship Hydrodynamic
Received: 2023/09/25 | Accepted: 2023/11/13
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