Patent
Vortex shedding flowmeter construction
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TLDR
A vortex flowmeter has a flow obstruction body or vortex forming bar (16, 17, 18) formed in a manner to provide enhanced generation of vortices across a wide range of Reynold numbers of the fluid being measured as discussed by the authors.Abstract:
A vortex flowmeter having a flow obstruction body or vortex forming bar (16, 17, 18) formed in a manner to provide enhanced generation of vortices across a wide range of Reynold numbers of the fluid being measured. The bar includes projections (16A, 17A, 18A) adjacent the lateral edges thereof which tend to cause formation of vortices at the leading lateral edges with respect to the direction of flow and enhance the formation of such vortices along the surfaces extending generally parallel to the flow. Additionally, the flowmeter disclosed provides a mounting (34, 36) for a sensor (37) which makes the device relatively insensitive to acceleration in the mounting structure or supporting pipe of the flowmeter.read more
Citations
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Method and device for the dynamic and density-independent determination of mass flow
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References
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Bluff body flowmeter
TL;DR: In this article, a flowmeters utilizing nonstreamlined, bluff bodies and sensors are disclosed for generating oscillating wakes in a fluid flowing through a pipe to produce high signal-to-noise signals which are free from intermittency and are sensed outside of the wake in the flow near and upstream from the bodies.
Patent
Vortex flow meter apparatus
TL;DR: A vortex shedding flow-sensing instrument comprising a flat-faced vortex generating plate integral with a downstream sensor-bar having flat sides set back laterally with respect to the rows of vortices shed from the edges of the vortex-generating plate is described in this paper.
Patent
Karman's vortices generating device
TL;DR: A vortex generating element of the type used in flow metering apparatus and having a generally elongate cylindrical shape mounted in a stream of flowing fluid so as to produce Karman''s vortices at a rate proportional to the velocity of the flowing fluid, with means detecting the production of vortice to give a linearly related measure of fluid velocity.
Patent
Vortex flowmeter apparatus
TL;DR: A vortex flowmeter in which the vortex-shedder and the vortex sensor comprise two distinct, easily separable assemblies that may be readily removed and/or assembled from the interior of a flow conduit is described in this paper.