Horizontal wind-velocity gauge support used for acquiring wind speed in wind tunnel and capable of realizing vertical adjustment to carry out multi-point observation

Abstract

The invention discloses a horizontal wind-velocity gauge support used for acquiring the wind speed in a wind tunnel and capable of realizing vertical adjustment to carry out multi-point observation. Ascrew is mounted at an outer extension segment and a through hole arranged on a horizontal crossbeam, the screw and the horizontal crossbeam are fixedly limited through a thread assembly, upper and lower ends of the screws are respectively provided with a top holder and a bottom holder, the top holder, the bottom holder and the screw are fixedly mounted through the thread structure, a wind-velocity gauge is mounted on the horizontal crossbeam, and the wind-velocity gauge is connected with a data acquisition device through a data line. The horizontal wind-velocity gauge support is advantaged in that a method of gradually moving the wind-velocity gauge to acquire wind velocity in a single point mode is replaced, multi-point observation can be carried out to acquire the wind velocity of onesame horizontal plane, the horizontal crossbeam can be vertically lifted down and up to change vertical height of the wind-velocity gauge, free adjustment on one same vertical section at different heights is realized, truckles are set through a bottom portion of the support body to realize back and forth movement in the wind tunnel, and multi-point wind-velocity acquisition on the one same horizontal plane at different distances is realized.

Description

Technical field: [0001] The invention belongs to the technical field of wind speed acquisition equipment in a wind tunnel, and in particular relates to a horizontal anemometer bracket capable of vertically adjusting multi-point observation. Background technique: [0002] The wind tunnel is the most widely used tool in aerodynamic research and experimentation. Its essence and core is to simulate the gas flow and characteristics around objects by artificially generating and controlling airflow, and to measure the effect of airflow on objects and to observe physical phenomena. A pipeline-shaped experimental equipment platform, which is the most commonly used and most effective tool for aerodynamic experiments. It is equivalent to moving the field test site indoors. The airflow field can be controlled artificially, and it has the characteristics of strong controllability and high repeatability. Therefore, the wind tunnel is widely used in the research of aerodynamics and various...

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Problems solved by technology

For example, when carrying out a configuration test on a shelterbelt in a wind tunnel, there will often be a model with a uniform configuration, or a relatively uniform configuration of forest belts, and it is necessary to measure the wind speed and wind field point by point in the large space inside and around the configuration model Another example is to carry out research on the wind-proof and sand-fixing performance of various sand barriers in a wind tunnel. If the configuration of the sand barrier model is a strip configuration, it is necessary to collect the wind speed values ​​at different positions inside and outside the sand barrier. In order to obtain the characteristics of the overall spatial flow field, etc., these wind tunnel experiments are all configured with a relatively single model. Using the above-mentioned vertical support to measure the wind speed needs to be measured point by point, which is cumbersome and labor-intensive.

For example, in a wind tunnel to carry out a uniform configuration model of different forest belts, or to conduct research on the wind-proof effectiveness of different sand barriers, etc., in order to obtain the wind speed flow field at a certain height in the horizontal direction, if the configuration model is 1mⅹ1m, the distance between the measuring points is 0.1 ⅹ0.1m, then there are at least 100 measurement points. If the above-mentioned vertical support is used for measurement, each point needs to be moved one by one, which is cumbersome and inefficient

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