Wind-tunnel modelling device for sandstorm entironment and engineering

A simulation device and wind tunnel technology, which is applied in the field of large-scale opening direct-flow blowing sandstorm environment and engineering wind tunnel simulation device, and can solve the problem that the wind and sand environment research cannot be satisfied.

Inactive Publication Date: 2009-04-01
BEIJING NORMAL UNIVERSITY
View PDF0 Cites 46 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Taking a comprehensive look at the functions and main research directions of domestic and foreign laboratories dedicated to wind and sand environment research, there is currently no laboratory specializing in wind and sand environment engineering technology, especially the combination of wind tunnel for wind and sand environment engineering and field wind and sand comprehens

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
  • Wind-tunnel modelling device for sandstorm entironment and engineering
  • Wind-tunnel modelling device for sandstorm entironment and engineering
  • Wind-tunnel modelling device for sandstorm entironment and engineering

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0054] Example 1

[0055] For basic research on the physics of wind-blown sand, it can involve sand or sand-dust transport law, wind-sand landform formation mechanism, etc. Here, the following measures can be taken for the sand or sand transport law:

[0056] 1. At a place 10m downwind from the entrance of the test section 10, a sand layer of 8m long and 5cm thick shall be laid;

[0057] 2. Fix the wind field data collection system of the sand flow at the 10 sand layer of the wind tunnel test section to measure the average wind speed of the sand-carrying wind at different heights;

[0058] 3. Lay a fixed sand collection system at the end of the sand layer in the test section 10 of the wind tunnel to measure the amount of sand transported by the sand-carrying wind;

[0059] 4. Set up a digital particle image velocity measurement system (PIV) or necessary supporting equipment for high-speed stroboscopic photography and electronic pressure scanning valve at a suitable position in the...

Example Embodiment

[0063] Example 2

[0064] For soil erosion by wind, the following measures can be taken:

[0065] 1. According to the size of the wind erosion test tank in the test section of the wind tunnel: 1.5m long x 0.5 wide, prepare the soil wind erosion model;

[0066] 2. Place the soil wind erosion model in the wind erosion test slot of the wind tunnel test section;

[0067] 3. Fix the wind field data collection system of the sand flow at the sand layer of the wind tunnel test section to measure the average wind speed of the sand-carrying wind at different heights;

[0068] 4. Use the soil wind erosion balance to weigh the soil wind erosion model, and then start the wind tunnel motor and wind sand flow wind field data collection system;

[0069] 5. After a certain period of time, stop the wind tunnel motor and weigh the wind erosion model of the soil after being blown and eroded;

[0070] 6. Analyze the average wind speed data of different heights of sand-carrying wind obtained by the win...

Example Embodiment

[0071] Example 3

[0072] For wind-sand engineering research, the following measures can be taken:

[0073] 1. According to the actual situation, according to a certain proportion, make a similar model of the wind and sand project;

[0074] 2. The similar model of the wind-sand project is transported to the turntable on the test section of the wind tunnel through the three-dimensional migration measuring instrument and the sand supply system;

[0075] 3. Fix the wind field data collection system of the wind sand flow at the edge of the wind direction of the wind sand project similar model to measure the axial wind speed profile of the test section;

[0076] 4. Set up digital particle image velocity measurement system (PIV, electronic pressure scanning valve) necessary supporting equipment at the appropriate position of the wind tunnel test section to measure the flow field of each part of the similar model of wind and sand engineering;

[0077] 5. Start the wind tunnel motor, wind...

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 wind sand environment and engineering wind tunnel simulation device, in particular to a large opening direct-flow air blowing typed wind sand environment and engineering wind tunnel simulation device which is specially used for simulating wind sand movement and sand control engineering; the wind sand environment and engineering wind tunnel simulation device comprises a tunnel body which comprises an air inlet section (3), a transition section (4), a damp part with a damper (5), a first diffuser (6), a stabilization section (7), a contraction section (8), a speed vehicle (9), a testing section (10) and a second diffuser (11) which are sequentially connected one after another; and the power system is connected with the air inlet section (3) and is used for providing the power for the wind tunnel by a DC motor. The wind sand environment and engineering wind tunnel simulation device can truly simulate the wind sand control, thus pushing the wind sand control technique to go ahead; furthermore, the wind sand environment and engineering wind tunnel simulation device can carry out the test for preventing the diffusion of contamination and the test for the building dynamics characteristic and the like.

Description

technical field [0001] The invention relates to a large opening direct-flow blowing sand blowing environment and engineering wind tunnel simulation device specially used for simulating wind and sand movement and sand prevention and sand control projects. Background technique [0002] my country is one of the countries most seriously affected by wind and sand in the world, and the annual direct loss caused by wind and sand is as high as 54 billion yuan. Wind and sand disasters have seriously endangered people's lives, restricted the coordinated development of the social economy, and become a serious problem for the Chinese nation. According to incomplete statistics, about 10 million mu of arable land, 1.58 billion mu of grassland, 1.5 million mu of woodland and shrub grassland have been degraded due to wind and sand disasters. 47 large and medium-sized cities, 172 counties, more than 24,000 villages, and 1,400 kilometers of railway , 30,000 kilometers of roads and more than ...

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): G01M9/00G01M9/02G01M9/08
Inventor 张茂栓邹学勇张春来程宏
Owner BEIJING NORMAL UNIVERSITY
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