Porous flow-control device applied in hypersonic maneuverable reentry vehicle

Abstract

The invention provides a porous flow-control device applied in a hypersonic maneuverable reentry vehicle. The porous flow-control device realizes the purpose of adjusting the torque of the vehicle by a non-movable part. The porous flow-control device comprises an air inlet hole arranged at the head part of the vehicle and an exhausting hole arranged at the tail part of the vehicle, wherein the air inlet hole and the exhausting hole are communicated by a duct arranged in the vehicle. The porous flow-control device provided by the invention has the advantages that high-pressure air behind bow shock wave at the head part of the vehicle is introduced into the internal duct, and the high-pressure air of the internal duct is sprayed out from the tail part of the vehicle as an air source of porous jet flow, so that the carry of redundant jet working medium is avoided.

Description

technical field [0001] The invention relates to the technical field of hypersonic aircraft, in particular to a porous flow control device applied to a hypersonic maneuvering reentry aircraft. Background technique [0002] At present, the flight control of hypersonic maneuvering reentry vehicles mainly adopts active aerodynamic surface control technologies such as air rudders and body flaps (Body Flap), and composite control technologies such as attitude control engine reaction control (RCS, Reaction Control System). At high altitudes, the density of the atmosphere drops rapidly, resulting in less efficient aerodynamic surface control. At the same time, the heat flow of the air rudder rudder shaft and the leading edge of the body flap is relatively large, which brings great challenges to the design of the heat-resistant structure. [0003] As a kind of active flow control technology, RCS technology needs to carry fuel storage tanks or high-pressure gas cylinders, which incre...

AI Technical Summary

Problems solved by technology

At high altitudes, the density of the atmosphere drops rapidly, resulting in less efficient aerodynamic surface control

At the same time, the heat flow of the air rudder rudder shaft and the leading edge of the body flap is relatively large, which brings great challenges to the design of the heat-resistant structure

[0003] As a kind of active flow control technology, RCS technology needs to carry fuel storage tanks or high-pressure gas cylinders, which increases the weight of the structure, which brings certain limitations to its reliable application

At the same time, under dense atmospheric conditions, the flow separation caused by shock wave / boundary layer interference will reduce the efficiency of aerodynamic surface control and RCS control. Therefore, the problem of hypersonic flight control brings great challenges to the design of hypersonic maneuvering reentry vehicles.

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