Method and device for simulating transportation process of submarine organisms at water intake

The invention discloses a simulation method and device for a transportation process of water intake benthos. The method comprises the following steps: obtaining physical parameters of the water intake benthos through a water tank physical simulation experiment; determining a first starting shear stress and a first stopping shear stress of the benthos at the water intake under the action of the constant flow according to the physical parameters; determining a first water flow bottom shear stress by using a triangular grid hydrodynamic tide model; then inputting the first starting shear stress, the first stopping shear stress and the first water flow bottom shear stress into a pre-established benthic organism motion model to obtain the transportation flux of the benthic organism under the action of the constant flow; and finally, simulating the transportation process of the benthos at the water intake by utilizing the transportation fluxes of the benthos at the plurality of observation points at different time