Karman vortex flowmeter

Abstract

Abstract PURPOSE: To stabilize the discharge from low to high flow region, by specifying the ratio of the width of vortex production body installed in the duct to the width of the duct. CONSTITUTION: 9 is the arrows indicating the flowing direction of fluid and 7, 8 are the section plate installed in the duct 1. The ratio X/D of the distance X between the width or the section plates 7 and 8 of the duct 1 to the width D of the vortex producing body 2 is set in the range of 3≤X/D≤4. Further the sectioning plate is set in the range of L 1 /D≥1 and L 2 /D≥2, where L 1 is the length of the vortex producing body for the upper stream side form the center, and L 2 is the length for the lower stream side. With the setting of this range, since the pulse missing rate is remarkably lowered, stable vortex street can be obtained. COPYRIGHT: (C)1980,JPO&Japio

Inventors

• 👤 Toru Kita

Bibliographic Details