TITLE:
Possibility of a Straightening Flow-Meter by Using Woven Screen
AUTHORS:
Takahiro Tsuchiya, Yota Koishi, Mitsuo Iwamoto, Hidemi Yamada
KEYWORDS:
Flow Rate Measurement, Woven Screen, Flow-Straightening, Resistance Coefficient
JOURNAL NAME:
Open Journal of Fluid Dynamics,
Vol.5 No.1,
February
28,
2015
ABSTRACT: In this paper, the possibility of the flow rate measurement for a circular pipe flow by using a wo-ven screen with the property of straightening un-uniform flows is discussed. The resistance coefficient and the flow rate coefficient are estimated from the pressure difference caused by the woven screen under the experiment ranges of the wire Reynolds number, Red = 2.2 × 102-1.8 × 103, and of the open area ratio, β = 0.28-0.65. As a result, the resistance coefficient decreases and the flow rate coefficient increases as the wire Reynolds number Red or the open area ratio β increases. In addition, both coefficients are not affected by the difference between uniform and turbulent pipe flows approaching the woven screen. Therefore, the possibility of a flow-meter having the property to straighten the un-uniform flow is expected.