In-tube air speed measurement method based on mean value theorem

 Based on the mean value theorem of higher mathematics, presents a new method for measuring air speed in ducts. Combined with the CFD analysis, finds the position point in the air duct measurement section where the air speed value is equal to the average air speed value, and measures the air speed at one time by hot wire anemometer. Puts forward the method to reduce repetitive actions in air speed measurements and shorten measurement time as well.