180°ベンド流量計 : 最適な流量測定断面について

概要

論文の詳細を見る
The rate of flow in a pipeline can be measured by a bend flowmeter which utilizes the differential pressure heat between the inside and outside walls of the curved passage. This investigation aims to determine the most suitable measuring section at which the pressure difference has the largest value, and at which the discharge coefficient of the bend flowmeter for that section has a nearly constant value. Flowmeters of a 180°-bend having a radius ratio of bend R/a=2.50, 2.89, 4.00 and 5.00 were employed for this investigation. It is found that the most suitable measuring section is found at an angle of θ_i=22.5°〜45° and also the most suitable radius ratio R/a is in the range of 2.50〜2.89.
一般社団法人日本機械学会の論文
1987-12-25