Investigation on effect of Turbulence Simulator on reducing resistance force by CFD method

Document Type : Original Article

Author

Marine Engineering, Amir Kabir University of technology, Tehran, Iran

Abstract

Today, the use of submarines in the military, research and scientific fields is extremely important. Therefore, their design, analysis and construction are also very important in measuring scientific ability and technology. One of the main concerns of submarine designers is to reduce their resistance to reduce fuel consumption, higher efficiency and better maneuverability. Therefore, different methods such as subsoil body optimization and methods have been used to confuse the flow around the submarine body. In the present study, using a numerical simulation method in the ANSYS-FLUENT software and the use of a riblet on the submarine body, which is a laboratory model for researchers' research, the force of resistance is reduced. In order to achieve the optimal arrangement of these riblets on the submarine body of Subbof, 4 methods of distribution of riblet surfaces on the submarine body of Subbof have been used. Finally, it was observed that the use of 32 rows of riblets on the submarine body reduces the resistance caused by fluid stagnation on the submarine body by 32%. But the most optimal way to reduce the total resistance is to place the riblets at a 45-degree angle, equivalent to 8 rows of riblets, on the submarine body to reduce the total resistance force by 13.8 percent.

Keywords

References

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