We have developed a “sensor particle”, which is a Lagrangian sensor system for real-time measurement of the force acting on a particle moving freely in fluid flow. The sensor particle is composed of an acceleration sensor, magnetometer, microcomputer, wireless module and cells. The built-in acceleration sensor detects the acceleration of particle at each instant of time. However, the signals contain both dynamic and static (gravitational) accelerations. Therefore we applied the external magnetic field oriented in the gravitational direction in order to identify the attitude of the sensor particle and to remove the gravitational acceleration from the measured signals. Consequently, we can obtain the force acting on a particle moving in fluid at each time through the equation of the motion. We have applied our system to oscillatory liquid flow with particle assemblage to obtain the basic knowledge on unsteady fluid force in a multi-particle system.
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ASME/JSME/KSME 2015 Joint Fluids Engineering Conference
July 26–31, 2015
Seoul, South Korea
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-5732-8
PROCEEDINGS PAPER
Wireless Measurement of Fluid Force in Liquid-Solid Flow by Lagrangian Sensor Particle
Tomoki Ikegai,
Tomoki Ikegai
Hokkaido University, Sapporo, Japan
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Wataru Yoshimori,
Wataru Yoshimori
Hokkaido University, Sapporo, Japan
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Shoichi Yasuda,
Shoichi Yasuda
Hokkaido University, Sapporo, Japan
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Shusaku Harada
Shusaku Harada
Hokkaido University, Sapporo, Japan
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Tomoki Ikegai
Hokkaido University, Sapporo, Japan
Wataru Yoshimori
Hokkaido University, Sapporo, Japan
Shoichi Yasuda
Hokkaido University, Sapporo, Japan
Shusaku Harada
Hokkaido University, Sapporo, Japan
Paper No:
AJKFluids2015-31322, V01AT31A003; 4 pages
Published Online:
April 4, 2016
Citation
Ikegai, T, Yoshimori, W, Yasuda, S, & Harada, S. "Wireless Measurement of Fluid Force in Liquid-Solid Flow by Lagrangian Sensor Particle." Proceedings of the ASME/JSME/KSME 2015 Joint Fluids Engineering Conference. Volume 1A: Symposia, Part 2. Seoul, South Korea. July 26–31, 2015. V01AT31A003. ASME. https://doi.org/10.1115/AJKFluids2015-31322
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