Knock stabilization control system for scramjet based on boundary suction
A technology of scramjet and stability control, which is applied in the direction of ramjet engines, combustion chambers, combustion methods, etc., can solve the problems of not considering the implementation of engine applications, so as to realize the dynamic and stable self-sustaining control of knocking, improve thrust performance, and improve The effect of combustion efficiency
Active Publication Date: 2019-10-29
NAT UNIV OF DEFENSE TECH
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In these basic studies, a hot jet tube that independently supplies fuel and oxidant is used for hot jet injection and ignition and detonation, without considering the specific engine application.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0021] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0022] The scramjet detonation stability control system based on boundary suction, including scramjet engine, detonation wave state monitoring system and wall surface boundary suction control system, burns along the side wall of the scramjet combustion chamber A plurality of pressure sensors 1 are installed at equal intervals in the length direction of the chamber, and a plurality of suction holes 2 are provided at equal intervals along the length direction of the combustion chamber on the upper and lower side walls of the combustion chamber of the scramjet engine. The hole 2 communicates with the pipeline in the combustion chamber wall and is connected with the suction pump through the pipeline. For example, in practical applications, the suction holes on the upper wall are connected together, and the suction holes on the lower wall are also c...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a scramjet detonation stability control system based on boundary suction. The system comprises a scramjet, a detonation wave state monitoring system and a wall face boundary suction control system. A suction device is arranged in a combustion chamber of the scramjet and is connected with and controlled by the wall face boundary suction control system. The detonation wave state monitoring system detects the real-time propagation position of the detonation waves in real time and transmits the real-time propagation position of the detonation waves to the wall face boundary suction control system. The wall face boundary suction control system determines the current effective suction area according to the real-time propagation position information of the detonation waves and turns on the suction device to perform wall face boundary suction on the current effective suction area, and with the forward propagation of the detonation waves, the real-time propagation position of the detonation waves dynamically changes, and the wall face boundary suction system dynamically changes the effective suction area corresponding to the suction device according to the change ofthe real-time propagation position of the detonation waves. The scramjet detonation stability control system based on boundary suction can synchronously realize dynamic stability and high-efficiencycombustion of the detonation waves.
Description
technical field [0001] The invention relates to the technical field of knock dynamic and stable propagation control under the condition of supersonic incoming flow, in particular to a boundary suction-based scramjet knock stability control system. Background technique [0002] The scramjet engine (Scramjet) has excellent performance under high Mach (Ma>5) flight conditions, and has become the preferred solution for the propulsion system of hypersonic aircraft. However, combined with the current research and the US X-51A flight test, it can be known that the acceleration performance of the scramjet demonstrator is not obvious, and the net thrust is relatively small. Therefore, based on current research, there is an urgent need to improve engine thrust performance. The scramjet engine is designed according to the Brayton isobaric combustion cycle, and its thermodynamic cycle efficiency is much lower than that of the detonation combustion of the approximate constant volume ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F02K7/14F23R3/00F23R3/16F23R3/26
CPCF02K7/14F23R3/00F23R3/16F23R3/26
Inventor 蔡晓东梁剑寒林志勇刘世杰陈伟强
Owner NAT UNIV OF DEFENSE TECH