Measurement of flow rate in a tube and wall skin friction

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Presentation transcript:

Measurement of flow rate in a tube and wall skin friction Václav Uruba CTU Prague, AS CR

Flow measurement in tubes January 13, 2019

Flow measurement in tubes Turbines, multirotor Energy (pressure) loss Ultrasonic principle Coriolis Rotameter Vortex generation Thermal flowmeters January 13, 2019

Turbines Axial Radial Flow rate  revolution speed January 13, 2019

Multirotor Flowmeters Plane Helical January 13, 2019

Energy loss Energy loss  flow rate January 13, 2019

Pressure loss Orifice Plate Segmental Wedge Nozzle January 13, 2019

Differential pressure flowmeters Venturi Tube Averaging Pitot Tube Elbow January 13, 2019

Ultrasonic flowmeters Transit Time Ultrasonic Flowmeter Doppler Ultrasonic Flowmeters Mean velocity - flowrate Velocity profile January 13, 2019

Coriolis flowmeters Changing natural vibration January 13, 2019

Rotameter drag gravity January 13, 2019

Vortex Flowmeter Strouhal frequency January 13, 2019

Thermal Flowmeters January 13, 2019

Skin friction measurement January 13, 2019

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Hot Film Probes January 13, 2019

Floating Element Flow January 13, 2019

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