نوع مقاله : مقاله پژوهشی
نویسندگان
1 مجتمع مکانیک دانشگاه صنعتی مالک اشتر شاهین شهر
2 مجتمع مکانیک، دانشگاه صنعتی مالک اشتر
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Hovercrafts are amphibious marine vehicles that are capable of moving on the surface of the water and land. In this article, hovercraft drag has been calculated at different speeds and in three states. The first state of floating completely submerged in the air, the second floating above the surface of the ground and the third considering the waves below the float. In the second and third cases, numerical modeling has been done with different floating distances from the ground or the sea. Simulation in the first and second states is done in single phase and in the third state in two phases. 14 and 16 simulations have been done in single-phase and two-phase modes, respectively. A total of 30 simulations were carried out, a parametric study on the variables of water depth, wave length and height, floating speed and distance from the surface were considered.The cells of the solution domain is of trimmer type and structured in the Star CCM software, and for the numerical solution, the finite volume method is used in the Fluent software. The standard k-ω turbulence model has been used to model turbulence in single-phase mode, and the k-ω sst model has been used in two-phase mode. In order to identify and simulate the free surface of the flow in the third state, the fluid volume fraction method has been used.
کلیدواژهها [English]
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