Abstract
This paper discusses the flow field to simulate the tidal power generation device using the fan model and porous media. The porous media is not take into account of the rotation effect of the blades. However, the fan model can be modeled without defining a blade shape in detail and it is possible to further consider the rotation effect. Due to the effect, it is suitable for the surrounding flow analysis. Nevertheless, the flow rate increases artificially in the case of using fan model, so that porous media is used to attenuate energy after passing fan model flow. As a result, around 98% of inlet velocity recovered in 20D downstream placing longitudinally space. For laterally space, 1.5D distance between models achieved inlet velocity at 20D downstream.