Countryside multifunctional portable experiment wind tunnel

Abstract

The invention provides an outdoor multifunctional portable experimental wind tunnel. The structure is characterized in that a rectangle straight column is composed of demountable unit columns which are made of light materials; each unit column is provided a length of 1m, a section of 0.5 multiplies 0.5m<2> and a nylon blanket arranged at bottom; wood joists or metal plates are adopted to fix the sides of the unit columns for connection and the joint between sides is sealed with sealing strips and is fastened by bolts; an axial-flow fan is connected with a flow-speed control device, a regulator and a generator through leads; a rectifying mesh provided with a vertical opening is respectively arranged on a wind inlet and a wind outlet of the experiment section; one unit of the rectangle straight column where samples are arranged is adopted as a sample chamber. The invention can simulate the natural wind and provide the stable, reliable and controllable flow for the outdoor experiments such as wind erosion, blowing impacts on plants and soil surface evapotranspiration and the like. The invention can provide the scientific basis for thoroughly recognizing the physiological and ecological features of blown plants and proving the adaptation mechanism of plants in the desertification process.

Description

technical field [0001] The invention belongs to a multifunctional portable wind tunnel, which can simulate natural wind, provide stable and reliable controllable wind speed, and can carry out experimental studies on wind erosion, plant wind response, soil surface evapotranspiration and the like under field conditions. Background technique [0002] The wind tunnel is designed for simulating the wind and sand phenomenon in the field. The application of wind tunnel experiment technology can measure the wind erosion characteristics of different soil experimental samples and models without being limited by complex natural conditions in the field, and obtain a large amount of data quickly and accurately, so as to conduct systematic analysis and research on wind erosion phenomena; It can conduct research on the impact of strong winds on traffic and buildings; and research on the impact of wind on crops. At present, various types of field wind tunnels used at home and abroad have d...

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Problems solved by technology

However, most of the samples tested in traditional laboratory wind tunnels are taken from outdoors. After the samples are transported for a long time, their soil structure and properties have changed to varying degrees, and they are prone to dehydration and cause plants to die, which affects the experimental data. representation of

[0003] The main reason for the distortion affecting the measured experimental data is the lack of correspond

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