What are the conditions of Coriolis acceleration?

1, the power system must have rotational angular velocity, that is, the involved motion must have rotation.

2. The velocity vector direction of relative motion must not be parallel to the implicated angular velocity vector, otherwise it will be zero.

When two members can rotate and form a moving pair, there is Coriolis acceleration in the mechanism. When a moving point moves relative to a moving reference frame and the moving reference frame rotates, the point will have Coriolis acceleration.

practical application

A typical example of Coriolis force is cyclone in the atmosphere. In the weather forecast program, you may have seen the counterclockwise cyclone in the satellite image. This cyclone is clockwise in the southern hemisphere. Foucault pendulum (18 19- 1868) is an excellent example to show the earth's rotation.

1850, Foucault used a 67-meter-long pendulum in the Pantheon in Paris. The deflection of the pendulum plane clearly tells people that the earth is rotating. Coriolis force is also manifested in microscopic phenomena. For example, it complicates the vibration of rotating molecules and makes the energy spectrum of molecular rotation and vibration interact.