1、 Product Introduction:

Wind tunnel testing machine, also known as wind tunnel laboratory, is a pipeline shaped experimental equipment that artificially generates and controls airflow to simulate the flow of gas around aircraft or entities, measure the effect of airflow on entities, and observe physical phenomena. It is one of the commonly used and effective tools for conducting aerodynamic experiments.

Wind tunnel experiments are an indispensable component of aircraft development work. It not only plays an important role in the research and development of aviation and aerospace engineering, but also becomes indispensable in fields such as transportation, building construction, and wind energy utilization with the development of industrial aerodynamics. This experimental method makes it easy to control the flow conditions.

Experiments often fix models or physical objects in wind tunnels for repeated blowing, and obtain experimental data through measurement and control instruments and equipment. In order to ensure accurate experimental results, the flow during the experiment must be similar to the actual flow state, that is, it must meet the requirements of the similarity law. However, due to the limitations of wind tunnel size and power, it is difficult to simulate all similar parameters simultaneously in a wind tunnel. Usually, the most influential similar parameters are selected for simulation according to the research topic to be studied.

In addition, the flow field quality of the wind tunnel experimental section, such as the uniformity of airflow velocity distribution, the deviation of the average airflow direction from the wind tunnel axis, the pressure gradient along the wind tunnel axis, the uniformity of cross-sectional temperature distribution, the turbulence level and noise level of the airflow, must meet certain standards and be regularly inspected and measured.

A wind tunnel is a large-scale experimental facility used to study aerodynamics. A wind tunnel is not actually a hole, but a large tunnel or pipeline with a giant fan blade inside that can generate a strong airflow. The airflow passes through some style grilles to reduce vortex generation before entering the laboratory. Wind tunnels are mainly used to measure the wind resistance of cars, which is represented by the drag coefficient Cd or Cw. The smaller the drag coefficient, the less affected it is by air resistance.

Wind tunnels are not only used to measure wind resistance, but also to study the effects of airflow passing around the vehicle, such as lift and downforce. They can also simulate different climatic environments, such as hot, cold, rainy, or snowy conditions. In this way, engineers can understand the working conditions of cars in different environments, especially issues such as cooling water tank heat dissipation and brake system heat dissipation. Wind tunnels were first applied in the aircraft manufacturing industry.