Multi-component simulative engine applied to vacuum plume effect experimental research and ignition scheme thereof

A plume effect, experimental research technology, applied in the direction of machines/engines, rocket engine devices, mechanical equipment, etc., can solve the problems of expensive, complex thermal protection methods, etc., to achieve simple schemes, simple thermal protection schemes, and obvious effects Effect
CN103644044AInactive Publication Date: 2014-03-19BEIHANG UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
BEIHANG UNIV
Publication Date
2014-03-19
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses a multi-component simulative engine applied to vacuum plume effect experimental research and an ignition scheme thereof. The multi-component simulative engine comprises a pre-combustion chamber head part, a pre-combustion oxygen supplementation chamber, a thrust chamber head part and a thrust chamber body part, wherein the pre-combustion chamber head part is tightly connected with the pre-combustion oxygen supplementation chamber, and the pre-combustion oxygen supplementation chamber, the thrust chamber head part and the thrust chamber body part are connected tightly and sequentially. The ignition scheme comprises working medium input, ignition time sequence and pre-combustion chamber capacity design. According to the invention, a propellant working medium is input through an ignition incendiary agent welding nozzle, an ignition oxidant welding nozzle and an oxygenating agent welding nozzle, and simulation of combustion products of different real engines can be realized by matching different incendiary agents, oxidants and other gases.
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Description

Technical field

[0001] The invention relates to a multi-component simulation engine applied to the experimental research of vacuum plume effect and its ignition scheme, belonging to the technical field of engine design. Background technique

[0002] When a space chemical propulsion engine is ignited in a vacuum environment, it will produce a feather-like high-temperature and high-speed jet, called a plume. The plume will produce aerodynamic effects, aerothermal effects, pollution effects, electromagnetic effects, etc., collectively referred to as the vacuum plume effect, which will bring adverse consequences to the normal operation of the spacecraft. Therefore, it is necessary to study the vacuum plume effect, and then optimize the plan and rational layout in the design process of the spacecraft, so as to reduce the negative impact of the vacuum plume effect on the spacecraft.

[0003] The research of vacuum plume effect includes numerical simulation and experimental research. Al...

Claims

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