Tuan Phan Anh†, Quang Vu Thanh‡, He Ngo Van†, Quang Le†, & Huong Pham Thi Thanh†

†Department of Ship Engineering and Fluid Mechanics, Hanoi University of Science and Technology Hanoi 10000, Vietnam

‡Hoa Binh Investment and Development High Technologies Joint Stock Company Hanoi 10000, Vietnam

*Corresponding Author Email: [email protected]

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Submarine for exploration is started to study in Vietnam in recent years. For estimation submarines’ resistance, people may use naval architecture theory based on mathematical calculation. This method will take time and it is very difficult to estimation with high accuracy since the surfaces of submarines are not all in popular shapes and continuous. In this paper, authors mention to a method for estimation resistance of an explorer submarine, called Computational Fluid Dynamics (CFD) method. The CFD is applied to a two-seat explorer submarine with displacement of 6.8 tons. Results of the study show the resistant coefficient of the submarine with different versus its running speed. The estimation of the resistance will help engineers to make a choice of the main engine for the submarine. The CFD method also displays the characteristics of the velocity and pressure water flows around the explorer submarine.