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

Hypersonic-speed variable-cross-section inward rotation type air feeding channel quick design method capable of achieving full flow capture

An internally rotating inlet and hypersonic technology, applied in the direction of computing, mechanical equipment, jet propulsion devices, etc., can solve the problems of complex implementation process and long design cycle, and achieve simple design process, shorten design cycle, and easy software The effect of automated design

Active Publication Date: 2018-07-27
广东空天科技研究院
View PDF6 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] These design methods can realize the controllable shape of the inlet and outlet of the inlet at the same time, and can also ensure that the leading edge of the inlet is completely wave-ridden to achieve full flow capture, but there are also problems such as very complicated implementation process and long design cycle.

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
  • Hypersonic-speed variable-cross-section inward rotation type air feeding channel quick design method capable of achieving full flow capture
  • Hypersonic-speed variable-cross-section inward rotation type air feeding channel quick design method capable of achieving full flow capture
  • Hypersonic-speed variable-cross-section inward rotation type air feeding channel quick design method capable of achieving full flow capture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] refer to Figure 1 to Figure 6 , the inlet of the inner-turning inlet is selected as a rectangle, and the outlet is a circle. The detailed steps are described:

[0054] Such as figure 1 As shown in , it is a schematic diagram of the processing method of a given reference flow field, which is divided into a dependent region and a weighted transition region by characteristic lines.

[0055] For the reference flow field and incoming flow parameters of the known compression profile and center body radius, the characteristic line method is used to calculate the flow conditions of the reference flow field, and the leading edge shock wave, tail shock wave, also called reflected shock wave, and forward shock wave are obtained. The characteristic line of the intersection point of the marginal shock and the central body. The characteristic line OC divides the reference flow field into two regions, the dependent region and the weighted transition region.

[0056] Such as figu...

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

The invention provides a hypersonic-speed inward rotation type air feeding channel quick design method which can achieve full flow capture, meanwhile can meet the free design requirements for the shapes of an inlet and an outlet and moreover can keep certain datum flow field performance, the shapes of the inlet and the outlet of an air feeding channel can be freely manufactured, the problem that amathematical function weighting transition method is used, so that a leading edge shock wave shape is changed, and the air feeding channel cannot completely ride a wave is solved, and full flow capture is achieved. According to the design method, the design process is easy and quick, software automatic design is easy to achieve, the design period is greatly shortened, and a foundation is providedfor carrying out further research work based on a lot of air feeding channel embodiments.

Description

technical field [0001] The invention relates to the design field of aircraft engine inlets, in particular to a rapid design method for a hypersonic variable cross-section inwardly rotating inlet used for scramjet full-flow capture. Background technique [0002] The hypersonic inlet is an important part of the scramjet engine, which undertakes the task of capturing the incoming flow for the engine, decelerating and supercharging the engine, and its design performance directly affects the working efficiency of the engine. Parameters such as incoming flow capture rate, boost ratio, and total pressure recovery coefficient are important indicators for evaluating the performance of a hypersonic inlet. [0003] Since the 1950s, with the research on scramjet and supersonic combustion, countries have made significant progress in hypersonic inlet design and performance analysis, and a series of hypersonic inlets have been born. Such as binary inlets, side pressure inlets, axisymmetri...

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 Applications(China)
IPC IPC(8): F02C7/042G06F17/50
CPCF02C7/042G06F30/17
Inventor 肖鸿文岳连捷肖雅彬张启帆张新宇
Owner 广东空天科技研究院
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