A Study on Unequal Temperature Distribution Effect in Viscosity Measurement of Vibro-Viscometers
This paper describes the experimental study of viscosity measurement error in the vibrational type viscometer,which measures viscous damping of the oscillating circular plate in a fluid in continuously increasing temperatures.The experiments are carried out to measure non-uniformity of the temperature field in the test cup of the vibrational viscometer in continuously increasing temperatures,while changing the viscosity of the target fluids.Experimental outcomes of thermal conduction show that an acceptable heating speed,which affords sufficient time for heat to be transferred throughout the fluid,may yield a homogenous temperature and provide viscosity results with higher accuracy.The thermal convection results indicate that the non-uniform temperature appears strongly in high viscosity fluids due to weakened thermal convection inside the test cup.
Viscosity Measurement Vibrational Viscometer Thermal Conduction Thermal Convection Rayleigh Number
Toshiharu KAGAWA Ali AKPEK Chongho YOUN
Interdisciplinary Graduate School of Science and Engineering,Tokyo Institute of Technology,Tokyo,Jap Department of Mechano-Micro Engineering,Tokyo Institute of Technology,Tokyo,Japan Precision and Intelligence Laboratory,Tokyo Institute of Technology,Tokyo,Japan
国际会议
The 5th International Conference on Mechanical Engineering and Mechanics(第五届国际机械工程与力学会议)
江苏扬州
英文
30-35
2014-08-21（万方平台首次上网日期，不代表论文的发表时间）