Porous-based ultrasonic-speed adsorption type compressor blade

A supersonic, adsorption technology, applied in the field of compressors, which can solve the problems of flow separation on the suction surface of the blade

Active Publication Date: 2021-07-23
NORTHWESTERN POLYTECHNICAL UNIV
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Conventional trans/supersonic adsorption compressor blades/cascades all use boundary layer suction to pump out low-energy fluid after the shoc

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
  • Porous-based ultrasonic-speed adsorption type compressor blade
  • Porous-based ultrasonic-speed adsorption type compressor blade
  • Porous-based ultrasonic-speed adsorption type compressor blade

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0037] This example is a porous ultrasonic adsorbent compressor blade that uses the original blade of the ultrasonic adsorbent compressor blade using the prior art, the imported geometry angle is 14 °, the exit geometric angle is -14 °; the leaf is 100mm The leaves are 65 mm long.

[0038] There is a suction chamber 2 between the suction surface of the ultrasonic adsorption compressor blade and the pressure surface, and the suction chamber penetrates the ultrasonic adsorbent compressor blade in the blade of the blade. The surface of the surface of the suction chamber is the same as the protected surface of the original blade suction surface of the ultrasonic adsorption compressor blade; the protrusion surface of the surface of the suction chamber and the original blade pressure of the ultrasonic adsorbent compressor blade The surface of the surface is the same; the leading edge and trailing edge of the suction cavity 2 are arcuates having a radius of 0.4 mm; the leading edge and t...

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

PropertyMeasurementUnit
Radiusaaaaaaaaaa
Wall thicknessaaaaaaaaaa
Radiusaaaaaaaaaa
Login to view more

Abstract

The invention discloses a porous-based ultrasonic-speed adsorption type compressor blade. A suction chamber which is through in a blade extending direction is arranged between a suction surface and a pressure surface of the ultrasonic-speed adsorption type compressor blade. A plurality of suction holes which communicate with the suction chamber are distributed in the suction surface of the ultrasonic-speed adsorption type compressor blade. Each suction hole is a circular hole or a rectangular hole with the same cross section area. Blade spacing on a gate plate, of the ultrasonic-speed adsorption type compressor blade is 30.55 mm, and a mounting angle is 47 degrees; during numerical simulation under a designed working condition, an inlet gas flow angle is 61 degrees, and an inlet Mach number is 1.5. The porous-based ultrasonic-speed adsorption type compressor blade avoids reflection, on the suction force, of shock waves, reduces loss of passing shock waves; and meanwhile, shock wave impact points are in the suction holes, so that mutual interference between the shock waves and the attaching layer of the suction force are effectively weakened, an attaching layer separation phenomenon after shock waves is effectively inhibited, too great Mach after before shock waves due to continuous acceleration, on the suction force, of the gas flow is avoided, and Mach number before waves and shock wave loss are reduced.

Description

technical field [0001] The invention relates to the field of compressors, in particular to a supersonic adsorption compressor blade based on porous control shock wave / wall interference. Background technique [0002] The development of modern aero-vehicle technology requires to further increase the thrust-to-weight ratio of aero-engines, that is, fewer stages and higher stage loads. Inside the compressor, higher stage loads are usually accompanied by unavoidable flow separation, and the flow loss and blockage caused by strong flow separation limit the increase of compressor stage loads, especially in trans- and supersonic compressors. Waves complicate the flow inside the compressor. Therefore, it is necessary to control the flow separation inside the compressor. [0003] Since Kerrebrock of MIT first proposed the adsorption compressor in 1997, the adsorption compressor has gradually become an important research direction to improve the performance of the compressor. Schule...

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
IPC IPC(8): F04D29/38F04D29/66F04D21/00
CPCF04D29/324F04D29/667F04D29/666F04D21/00F05D2220/3216
Inventor 曹志远宋澄高玺张飞张翔
Owner NORTHWESTERN POLYTECHNICAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap