Application No./Patent No.: 2018103592574 Application date: April 20, 2018.
Inventor/Designer: Cao Yu, Zhao Xiuju, Xue Wei, Yang Huan, Feng Guang, Lu Yonghao and Li Xiaogang.
The invention provides a device for testing fluid drag reduction effect of surface microstructure, which comprises an environment simulation unit, a motion control unit and a shooting and recording unit. The environment simulation unit comprises a tube, an impeller, a partition plate, a heating pipe, a temperature controller and an external controller; The tube is an empty container with an open end and a closed end, which is vertically placed along the gravity direction and filled with test liquid; The motion control unit comprises a guide rail slider mechanism, a sample clamp, a pulley, a pulley rope and a driving object; The shooting and recording unit is a high-speed camera, which is installed and placed outside the tube, so that it can clearly shoot the vertical movement process of the sample driven by the slider from the bottom up in the gravity direction after adjusting the focal length. According to the invention, the fluid drag reduction effect of the surface microstructure can be accurately tested, and the fluid drag reduction effect of samples with different surface microstructures under different fluid environment working conditions and at different driving energy consumption, traction driving force or traction speed can be tested.
