An open-loop active flow control device for underwater glider based on synthetic jet

Abstract

The invention discloses an open-loop active flow control device for an underwater glider based on a synthetic jet, which relates to the field of active flow control and includes a mechanical double-chamber vibrating synthetic jet exciter arranged at the front end of the wing of the underwater glider; the mechanical dual The cavity vibrating synthetic jet exciter is electrically connected with a control unit, and the control unit is fixedly arranged in the underwater glider; a plurality of jet nozzles are opened on the front end of the upper surface of the wing of the underwater glider, and the mechanical double-chamber vibrating synthetic jet A jet actuator is located at the location of the jet orifice. The open-loop active flow control device for underwater glider based on synthetic jets provided by the present invention obtains local or global effective flow changes through local disturbances, thereby achieving purposes such as increasing lift and reducing drag, improving flow fields, and suppressing noise.

Description

technical field [0001] The invention relates to the technical field of active flow control, in particular to an open-loop active flow control device for an underwater glider based on a synthetic jet. 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-to-drag ratio...

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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