Of course, the cow will not fly, anyway, it must not fly. However, any object in the air stream will be subjected to air lift and resistance. The direction of the lift is perpendicular to the direction of the airflow, and the direction of the resistance is parallel to the direction of the airflow. For this basic but worthwhile phenomenon, we often use it for research, but rarely use it to study farm animals. So today, in this article you will see "Which air speed does the cow fly?"
The origins of FloEFD date back to the 1980s, and it first developed in Russian industry. In 1991, the Moscow Institute of Physics released the first commercial CFD code called AeroShape 3D (the prototype of FloEFD). Since the application of computers at that time was far less extensive in the Soviet Union than in Western countries, and its computing power was not as developed as in Western countries, the CFD technology developed at that time must not only meet the accuracy requirements, but also ensure a limited amount of calculation. These have laid a solid foundation for FloEFD to enable the use of unique meshing techniques to meet the analytical needs of industrial design time-levels, resulting in faster and more accurate results.
When the air flow rate varies with different winds (bredal, wind, wind, storm, and hurricane), we use FloEFD to calculate the lift and resistance of the cow when the wind blows from the front and back (remember, this is for the air) The dynamics of the angle of exploration of cattle is always facing the oncoming air.) These things are too easy for FloEFD to require a set of CAD surfaces to be stressed in the relevant direction. In this case, we summarize the results of the lift and resistance on the surface of the cattle as follows.
For the resistance the cow receives, it does not change substantially as the direction of the wind in the cow changes. However, lift is not the case. When the cow is facing the wind, the lift of the cow is much greater than the lift in the other direction.
By the same token, we can think that at a certain air flow rate, the cow's lift will be enough to offset the cow's weight. From the lift and wind speed maps, we can easily estimate that the air flow rate is 1000 km/h. At this time, the cow's own weight cannot prevent itself from being lifted off the ground. (Well, in fact, we ignore the resistance that the cows received at this time. Maybe the resistance on the face of the cow can stop the cow from flying, but we also need to know the fact that if there is not a lot of heat and blasting, this ground air speed Generally it does not appear). But we can also say that if a cow runs at 1000 km/h, we can see it flying. (Well, we ignored it again. It is impossible for a cow to run so fast! And once the cow flies up, it stops running, so that his speed will drop again and then he will have to fall to the ground).
So, technically, cows can fly! It’s just that they don’t have the technology themselves.
As the sole agent of FloEFD's domestic auto industry, Hengrun Technology has an experienced and technical support team to provide complete solutions and engineering services for automakers and suppliers in the automotive and construction machinery industries.
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