Experimental facility using water flow for simulating wind environment of building

Abstract

An experimental facility using water flow for simulating a wind environment of a building comprises a wind environment simulating system and a vision experiencing and observing system. The wind environment simulating system comprises a main box body of a box structure, wherein the middle portion of the main box body is divided by a baffle into an inner area and an outer area, and one side of the inner area and one side of the outer area are communicated; the inner area is further divided by a movable baffle into a buffer area and an experimental area; the side, close to the buffer area, of the outer area is provided with an immersible pump; a movable grid is further arranged between the buffer area and the experimental area; a building model is fixed in the experimental area; the vision experiencing and observing system comprises an image acquisition unit and a supporting device. When the experimental facility is used, the immersible pump generates the circulation water flow after the main box body is filled with water, the circulation water flow flows through the building model and is used for simulating the action of the wind environment inside and outside the building, and the image acquisition unit acquires and records experimental data of the motion trail of the water flow. The experimental facility using the water flow for simulating the wind environment of the building is elaborate in design, compact in structure, convenient to operate, high in simulation similarity, small in size, convenient to carry, and low in cost, thereby being particularly suitable for classroom teaching and experimental activities.

Description

technical field [0001] The invention relates to a test device for building wind environment, more particularly, relates to an experimental device for simulating building wind environment by water flow. Background technique [0002] With the continuous improvement of modern living standards, people's functional requirements for buildings are also increasing, especially to maintain good ventilation indoors and outdoors while avoiding exhaust backflow, creating a building indoor environment with high physiological comfort for the human body, and through good Natural ventilation reduces the use of air conditioners and reduces the ever-increasing energy consumption of buildings. Therefore, the study of architectural wind environment has become a very important topic in the study of modern architectural design, and has been paid close attention and attention to by the industry. At the same time, the cognition and research of architectural wind environment is also an important con...

AI Technical Summary

Problems solved by technology

Using a wind tunnel to simulate the building wind environment can control the test conditions more accurately, but the scale of the test environment required is large, the test equipment is expensive, the operation cost is high, and the test site is fixed, which is not conducive to teaching occasions , so it cannot meet the needs of wind environment simulation tests for different types of buildings, and it is difficult to apply to the needs of teaching activities due to its high cost

The advantage of computer simulation to predict the wind environment lies in its flexibility and repeated simulation functions. However, due to the lack of uniform and credible measurement dimensions for its modeling, it is often not applicable to the indoor and outdoor wind environment and accurate wind speed and direction of complex building shapes, which makes the experimental results and The actual situation is quite different, and there are problems such as the teaching is not intuitive

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