Karman Vortex Flow Meter

概要

論文の詳細を見る
This paper deals with the application of Karman vortex shedding phenomena to measurement of the flow rate in a channel or a pipe. The fundamental principle of this application is that the vortex shedding frequency is proportional to the flow velocity near the body which is the cause of vortex shedding. The important point resulting from the experimental investigation is that (i) this flow meter is a direct digital transducer system at primary element, (ii) it is not necessary in flow rate measurement for vortex street in the wake to be stable, (iii) the detection of vortex shedding frequency is possible at Reynolds numbers from thousands to about 2×10^5,and this leads to the digital flow rate measurement, (iv) the accuracy of this digital measurement is within ±1.5 per-cent through out the range.
一般社団法人日本機械学会の論文