Hypersonic aircraft with heat energy utilization system and flow control method thereof

Abstract

The invention discloses a hypersonic aircraft with a heat energy utilization system and a flow control method, and relates to the field of heat management and flow control of hypersonic aircrafts. A supercritical CO2 heat exchange micro-channel is arranged at the head position of the hypersonic flight vehicle for heat exchange, supercritical CO2 flows through the supercritical CO2 heat exchange micro-channel to absorb a large amount of heat so as to achieve heat reduction of the head of the flight vehicle, and then high-temperature and high-pressure supercritical CO2 impacts a turbine to do work; the internal energy of hypersonic gas carried by the supercritical CO2 is converted into electric energy through a generator, and the electric energy is stored in a storage battery and can be used for supplying power to all systems of the aircraft; then high-pressure CO2 gas subjected to the heat energy utilization process is fully utilized, high-pressure jet flow is jetted at the front edges of the head and the empennage of the aircraft to control head shock waves and empennage shock waves, and therefore heat flow and resistance of the head and the empennage of the aircraft are reduced, and heat reduction and resistance reduction of the hypersonic aircraft are achieved.

Description

technical field [0001] The present invention relates to active flow control technology, hypersonic vehicle technology and supercritical CO 2 The technical field of thermoelectric conversion, specifically a hypersonic aircraft with a thermal energy utilization system and its flow control method. Background technique [0002] Hypersonic vehicle technology is a new commanding height in the field of aerospace technology in the 21st century. Hypersonic vehicles need to maintain hypersonic flight in the atmosphere for a long time. The harsh aerothermal environment and strict high lift-to-drag ratio requirements make the design of hypersonic vehicles face severe challenges. However, simply looking for a way to optimize the lift-to-drag ratio from the perspective of aerodynamic shape design will inevitably lead to a too small volume ratio of the aircraft, which will cause the loss of other combat effectiveness and increase the burden on the thermal protection system. Therefore, wi...

AI Technical Summary

Problems solved by technology

Judging from the current research progress, the active flow control technology is an effective way to increase the lift-to-drag ratio of the aircraft and reduce the aerodynamic heat of the aircraft. Hypersonic flow field; requires additional energy input or needs to carry a large amount of air source; affects the aerodynamic shape of the aircraft, etc.

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