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

PIV full-flow-field synchronous automatic measurement system based on rotary experiment table

A technology for synchronous automatic and measurement systems, which is applied in the direction of fluid velocity measurement, measurement devices, jet engine testing, etc., and can solve problems such as difficult synchronization and automatic measurement of the entire flow field, low precision, and low time resolution of flow field-related information , to achieve the effect of improving the accuracy and time resolution of experimental data, improving measurement efficiency, and improving experimental measurement efficiency

Active Publication Date: 2020-12-11
BEIHANG UNIV
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the past, it was often difficult to apply PIV technology to the simultaneous automatic measurement of the full flow field in the channel under the condition of rotation. Very low, low precision

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
  • PIV full-flow-field synchronous automatic measurement system based on rotary experiment table
  • PIV full-flow-field synchronous automatic measurement system based on rotary experiment table

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] The present invention provides a kind of PIV full-flow field synchronous automatic measurement system based on the rotating test bench, comprising a computer 7, a rotating test bench 8 and a turntable 9 inst...

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 discloses a PIV full-flow-field synchronous automatic measurement system based on a rotary experiment table. The system guides laser emitted by a laser generator to a measurement sectionthrough the reflection principle of a reflector, and enables the reflector and a PIV camera to be fixed on a ball screw, and thus, on the premise that the rotary experiment table is not turned off, full-flow-field synchronous automatic shooting on the main flow and the secondary flow of the channel measurement section can be realized. A PIV camera for shooting a main flow is placed on the side edge of the channel measurement section, a PIV camera for shooting a secondary flow is placed at the outlet of the channel measurement section, the PIV camera and the measurement section are kept on thesame rotating arm, and a laser generator is placed on the middle turntable, so that synchronous measurement is ensured, namely, the time resolution is high enough, and the rotating safety is improved; meanwhile, automatic measurement of full-flow-field laser particle image speed measurement of the channel measurement section under the rotating condition can be achieved, the measurement efficiencyand safety are greatly improved, and finally the precision of full-flow-field flow data can be improved.

Description

technical field [0001] The invention relates to the technical field of rotary heat exchange experiments, in particular to a PIV full flow field synchronous automatic measurement system based on a rotary test bench. Background technique [0002] In the field of aero-engines, in order to increase the thrust-to-weight ratio of the engine, it is necessary to increase the temperature before the turbine. At present, the temperature before the turbine has reached and exceeded 2000K, and it is developing towards a higher direction, which has seriously exceeded the tolerance temperature of current materials. , in addition to the continuously increasing turbine inlet temperature, the turbine blades also bear mechanical loads caused by high-speed rotation, aerodynamic loads caused by gas impact, chemical corrosion, and thermal stress caused by uneven temperature of the blades themselves, so cooling technology is required To reduce the working temperature of the turbine blades and prolo...

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): G01M15/14G01P5/20
CPCG01M15/14G01P5/20
Inventor 陶智黄维娜施锦程李海旺郭文由儒全
Owner BEIHANG UNIV
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