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

Seven-hole probe airflow field wind speed and direction measuring method and device

A technology of wind speed, wind direction, and measurement method, which is applied in the direction of measuring device, fluid velocity measurement, velocity/acceleration/shock measurement, etc. It can solve the problems of complex calibration and measurement principles, a large number of holes in the pressure direction of the seven-hole probe, and an increase in the measurement range. And other issues

Inactive Publication Date: 2020-06-09
CHINA SHIP DEV & DESIGN CENT
View PDF3 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above defects or improvement needs of the prior art, the present invention proposes a method and device for measuring the wind speed and direction of the airflow field of the seven-hole probe, thereby solving the problem of measuring range due to the large number of holes in the pressure direction of the seven-hole probe. Gradually increasing technical issues that complicate the calibration and measurement principles

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
  • Seven-hole probe airflow field wind speed and direction measuring method and device
  • Seven-hole probe airflow field wind speed and direction measuring method and device
  • Seven-hole probe airflow field wind speed and direction measuring method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] In the example of the present invention, "first", "second", "third", etc. are used to distinguish different objects, and not necessarily used to describe a specific order or sequence.

[0033] Although fluid flow field measurement has entered the era of complex and expensive optical and electrical equipment measurement, such as Laser Doppler Velocimetry (LDV), Particle Image Velocimetry (PIV), Hot...

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 seven-hole probe airflow field wind speed and direction measuring method and device, and belongs to the field of airflow field testing, and the method comprises the steps: obtaining the instantaneous pressure values of seven holes outputted by a seven-hole probe; determining the subarea of the seven-hole probe corresponding to the incoming flow of the airflow field, and obtaining a pitch angle, an azimuth angle, and a total pressure coefficient and a static pressure coefficient related to the wind speed according to the instantaneous pressure value of each hole and the calibration coefficient corresponding to the subarea; obtaining a wind direction angle according to the pitch angle and the azimuth angle, and obtaining the wind speed of the airflow field accordingto the total pressure coefficient and static pressure coefficient related to wind speed. The seven-hole probe airflow field wind speed and direction measuring method and device can be used for efficiently, quickly and accurately measuring the wind speed and direction of the airflow field, standardizing the measurement process, improving the working efficiency and reducing uncertainty influence factors.

Description

Technical field [0001] The invention belongs to the field of airflow field testing, and more specifically relates to a method and device for measuring wind speed and direction of a seven-hole probe airflow field. Background technique [0002] The method of measuring the velocity field by the porous probe is divided into three holes and five holes according to the number of holes. And with the progress of the processing technology, the probe diameter is getting smaller and smaller, the current diameter of the seven-hole probe hole reaches 4mm, and the diameter of the follow-up development will reach 2mm. [0003] The seven-hole probe is a direction probe with seven pressure measuring holes on the head. figure 1 Shown is the physical picture of the seven-hole probe, in which, figure 1 Middle (a) is the physical map of the seven-hole probe, (b) is the schematic diagram of the probe output hole, and (c) is the positional relationship of the seven-hole viewed from the windward side. Su...

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): G01P5/08G01P13/00
CPCG01P5/08G01P13/00
Inventor 朱传焕唐君张恒萍郎波
Owner CHINA SHIP DEV & DESIGN CENT
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