Anemometer

1. Measure the speed and direction of the average flow.2. The pulsation velocity of the incoming stream and its spectrum are measured.
3. The Reynolds stress in the turbulent flow and the velocity dependence and time dependence of the two points are measured.
4. The wall shear stress is measured (usually using a hot film probe placed flush with the wall, the principle is similar to hot wire speed measurement).
5. The fluid temperature is measured (the probe resistance is measured in advance with the temperature of the fluid, and then the temperature is determined based on the measured probe resistance.