Fish body surface structure-based deformation wall surface resistance test device

Abstract

The invention discloses a fish body surface structure-based deformation wall surface resistance test device. The fish body surface structure-based deformation wall surface resistance test device comprises a fluctuation wall surface vibration telescopic mechanism, a water circulation mechanism and a pressure difference resistance test mechanism, wherein the water circulation mechanism comprises a water pump and a circulation pipeline, a water outlet of the water pump is connected with a water inlet of the water pump by the circulation pipeline to form a water flow circulation loop, the fluctuation wall surface vibration telescopic mechanism comprises a motor transmission device, a deformable flexible wall surface and a plurality of telescopic support rods, the plurality of telescopic support rods are uniformly fixed at the bottom of the deformable flexible wall surface at intervals, the telescopic support rods are all arranged on the same plane, an upper end of each telescopic support rod can be used for connecting and fixing the bottom of the deformable flexible wall surface, and the deformable flexible wall surface is arranged in the circulation pipeline. The device is simple in structure, and a water flow field condition is provided for the device mainly through power of the pump by the water circulation mechanism; and with the design of the circulation pipeline, the energy consumption can be effectively reduced, and an experiment water flow field with an enough flowing speed is provided, and the occupancy space of the device also can be reduced.

Description

technical field [0001] The present application relates to a device for testing deformation wall surface resistance based on fish body surface structure. Background technique [0002] With the continuous development of today's scientific and technological level, the performance of ships and underwater vehicles is becoming more and more perfect, and the number is also increasing. Effectively reducing the surface friction resistance of ships and underwater vehicles has become a breakthrough for people to create new energy-saving technologies. Rays can use body functions to swim quickly underwater with extremely low resistance, and their bodies are not attached to other marine organisms and microorganisms. This low-energy, high-efficiency swimming mode is a must for any underwater vehicle. longing to have. The development of bionic and wall drag reduction technology requires us to understand and master the physiological structure and the internal movement mechanism of fish, so ...

AI Technical Summary

Problems solved by technology

However, due to the long period of numerical simulation and fluid experiment and the large demand for funds, many studies are still only at the theoretical level, and many of the existing hydrodynamic drag reduction technologies have not yet entered the engineering field.

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