Development and supply of liquid flow standards for water and hydrocarbon. Development of measurement techniques for flow rate and flow velocity.
N. Furuichi, R. Doihara, K-H. Cheong, S. Wada, M. Ono, T. Yoshida, S. Kagami,
We are developing the national standards of flowrate for water, kerosene, light oil, spindle oil and engineering gasoline. The measurement principle in all facility is based on static gravimetric method with high performance diverters. The stability of flowrate, temperature and pressure is very high to achieve high quality measurement and low uncertainty of flowrate. The flowrate and viscosity range of our facility is world highest level.
We are also developing the flowrate measurement techniques for flowrate and flow velocity using the facilities. Especially, we focus on the novel techniques of ultrasonic and Coriolis flow meters.
Development of calibration technique and validation method for liquid micro flow meter, Basic research of flow dynamics on micro flow.
R. Doihara, K-H. Cheong, S. Kagami,
In the fields of semiconductor manufacturing, medical/analytical instruments, continuous chemical synthesis, etc., measurement control of micro flow is one of the important technologies. For example, plunger pumps and flow sensors are installed in a semiconductor manufacturing equipments or analytical instrument. The accuracy, stability, and reproducibility of these flow sensors and liquid feed pumps can affect the performance of semiconductor products and the reliability of analytical instruments.
We are developing a flow rate standard in the flow rate range of 200 g/min to 1 mg/min and researching the flow field in the micro channel.
Fundamental research on wall-bounded turbulence at high Reynolds number. Fundamental research on turbulence in non-Newtonian fluid.
N. Furuichi, M. Ono,
Fundamental research work on fully developed turbulent pipe flow at high Reynolds number is performed. We have done the precisely measurement for the friction factor and velocity profile using LDV in the pipe flow. We are now trying to clarify the turbulent characteristics for wall-bounded flow at high Reynold number. Recently we started the new research work for turbulent phenomena of non-Newtonian flow.
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