A closed-loop active flow control device for underwater glider based on steady blow-suction flow

Abstract

The invention discloses a closed-loop active flow control device for an underwater glider based on a constant blowing and sucking flow, and relates to the field of active flow control, including a diffused silicon pressure sensor arranged at the front end of the bottom of the wing of the underwater glider, and the diffused silicon pressure sensor is connected to a control unit. , the control unit is respectively connected with the micro water suction pump group located at the bottom front end of the wing bottom of the underwater glider and the micro water jet pump group located at the bottom rear end of the wing bottom of the underwater glider, and the micro water suction pump group and the micro water jet pump group are respectively connected to the water storage tank through pipelines ; The front end and the rear end of the upper surface of the wing of the underwater glider are respectively provided with a plurality of mechanical nozzles, the micro suction pump group is connected with the mechanical nozzle located at the front end of the upper surface of the wing of the underwater glider, and the micro water jet pump group is connected with the underwater Mechanical nozzle connection at the rear end of the upper surface of the glider wing. The invention obtains local or global effective flow changes through local disturbances, thereby achieving the purposes of increasing lift and reducing drag, improving flow fields, suppressing noise, and the like.

Description

technical field [0001] The invention relates to the technical field of active flow control, in particular to a closed-loop active flow control device for an underwater glider based on a constant blow-suction flow. Background technique [0002] Underwater Glider (UG) is a new type of underwater vehicle that uses net buoyancy and attitude angle adjustment to obtain propulsion. Compared with traditional underwater vehicles, underwater glider has the advantages of long range, strong continuous working ability and good economy. As an underwater unmanned intelligent mobile platform, underwater glider has broad application prospects and great potential value in the fields of exploring marine resources, marine scientific investigation and military affairs. According to the appearance, underwater gliders can be divided into two types: traditional rotary type and wing-body fusion type. Since the shape of the rotor shell cannot provide very high lift like hydrofoils, the maximum lift...

AI Technical Summary

Problems solved by technology

At present, the lift-to-drag ratio of wing-body fused underwater gliders can reach 15-20 through shape optimization. Further improvement of the lift-to-drag ratio

Moreover, only relying on shape optimization to increase the lift-to-drag ratio of an underwater glider will narrow the internal space of the glider, reducing its detection capability or working time.

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