#THE WIND RISES FLOWSTATE FULL#

It is a wooden box with two ends open, 45.7 cm x 45.7 cm in cross section, and 3.05 meters long. Mariotte from 1869 to 1871, and measured the resistance to the relative movement of objects and air.

#THE WIND RISES FLOWSTATE FULL#

Chinese name Wind tunnel Foreign name wind tunnel Full name Wind tunnel laboratory Make up Cave, drive system and measurement control system Wind tunnel history The first wind tunnel recognized in the world was built by the Englishman E. In addition, the quality of the flow field in the experimental section of the wind tunnel, such as the uniformity of the 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 the cross-section temperature distribution, the turbulence and noise of the airflow The grade must meet certain standards and be checked and determined regularly. Usually, according to the topic to be studied, some similar parameters with the greatest influence are selected for simulation. However, due to the limitation of the size and dynamics of the wind tunnel, it is difficult to simulate all the similar parameters in a wind tunnel at the same time.

In order to make the experimental results accurate, the flow during the experiment must be similar to the actual flow state, that is, the requirements of the similarity law must be met. During the experiment, the model or object is often fixed in the wind tunnel and repeatedly blown, and the experimental data is obtained through measurement and control instruments and equipment. With this experimental method, the flow conditions are easy to control. With the development of industrial aerodynamics, it is even more indispensable in transportation, housing construction, and wind energy utilization. It not only plays an important role in the research and development of aerospace and aerospace engineering. Wind tunnel experiments are an indispensable part of aircraft development.

Pipe-like experimental equipment is one of the most commonly used and effective tools for conducting aerodynamic experiments. It can measure the effect of airflow on an entity and observe physical phenomena. It is used to simulate the flow of gas around an aircraft or an entity. It is an artificial way to generate and control airflow. The wind tunnel (wind tunnel) is a wind tunnel laboratory.

The wind rises flowstate