Possibility of a Straightening Flow-Meter by Using Woven Screen

• 作者: Hidemi Yamada Mitsuo Iwamoto Takahiro Tsuchiya Yota Koishi
• 来源期刊: 流体动力学(英文)
• 学科: 医学
• 关键词: FLOW Rate Measurement Woven SCREEN Flow-Straightening Resistance COEFFICIENT
• 年，卷（期）: 2015,（1）
• 页码范围: 34-38
• 页数: 5页
• 分类号: R73

摘要

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.