Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Apparatus and method for regulating and controlling trailing edge flow of v-shaped flame holder by using surface arc plasma excitation

A flame stabilizer and plasma technology, applied in the aviation field, can solve problems such as complex mechanical devices and large total pressure loss, and achieve the effect of reducing the flow separation area and enhancing stability

Active Publication Date: 2022-01-07
AIR FORCE UNIV PLA
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, both of these methods have the disadvantages of complex mechanical devices and large total pressure loss.

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Apparatus and method for regulating and controlling trailing edge flow of v-shaped flame holder by using surface arc plasma excitation
  • Apparatus and method for regulating and controlling trailing edge flow of v-shaped flame holder by using surface arc plasma excitation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] now attached figure 1 The method of the present invention is further described. The invention provides a device for regulating and controlling the flow at the trailing edge of a V-shaped flame stabilizer by using surface arc plasma excitation.

[0034] The v-shaped flame stabilizer is in the shape of a groove, and the four walls of the groove include the upper wall, the lower wall, and the left and right walls. The lower wall is placed horizontally, and there is an angle between the upper wall and the lower wall. The V-shape of the part, so it is called "v-shaped" flame stabilizer, and the internal cavity of "v-shaped" flame stabilizer is "v-shaped cavity". The left and right walls respectively clamp the upper and lower walls from the left and right sides, and are fixedly connected with both, and the left and right walls are usually placed parallel to each other. like figure 1 As shown, behind the upper and lower walls, there is a rear wall between the upper wall and...

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

No PUM Login to View More

Abstract

Provided is a device for controlling the trailing edge flow of a v-shaped flame stabilizer by utilizing surface arc plasma excitation, and the device includes a v-shaped flame stabilizer, a plasma exciter and a power supply. The high-speed and high-temperature airflow at the entrance of the combustion chamber flows into the internal recirculation zone 103 of the flame stabilizer through the air holes 106 between the upper and lower wall surfaces and the cylindrical cavity. The air holes 106 are used to input air 101 from the outside to the V-shaped cavity for combustion support. Multiple arcs generated by the discharge are connected together to form a multi-channel arc discharge array. Also provided is a method for controlling the flow at the trailing edge of the v-shaped flame stabilizer by using surface arc plasma excitation. The device and method of the present invention can suppress flow separation, change the structural shape of the vortex and reduce the frequency of vortex shedding, expand the size of the recirculation zone, expand the range of oil and gas mixing, increase the area of ​​co-combustion, and improve the flow quality and stability of the V-shaped flame stabilizer. burn border.

Description

technical field [0001] The invention belongs to the plasma flow control technology in the aviation field, and in particular relates to a device and a method for controlling the flow of a V-shaped flame stabilizer by using surface arc plasma excitation. Background technique [0002] The flame stabilizer is a device used to keep the flame stable in the combustion equipment. Among them, the v-shaped flame stabilizer is the most basic blunt body flame stabilizer. It has a simple structure and rich application experience. It is mainly used for flames in subsonic flow fields. Stable, it has achieved a good flame stabilization effect in the combustion chamber of the sub-combustion ramjet engine, and is an indispensable equipment in the combustion chamber of the sub-combustion ramjet engine. The flame stability and combustion efficiency of the flame stabilizer are largely determined by the flow characteristics of the fluid behind the bluff body. When the airflow flows to the stabil...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F23R3/22
CPCF23R3/22
Inventor 贾敏吴云宋慧敏张志波林冬金迪崔巍梁华
Owner AIR FORCE UNIV PLA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com