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Fundamentals of Fluidic Oscillation Measurement Alternative to rotary meter measurement

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January 12, 2013

The scientific community has known about fluidic oscillation as a measurement technology for many years. Continuing advances in technology make this type of metering a compelling alternative to mechanical gas meters. This paper will discuss fundamentals of operation, as well as features and benefits of this technology for the user. Based on Bernoullis Theory – A slow moving high pressure gas becomes fast moving low pressure gas at the nozzle exit forming a jet of gas. The jet, once formed can be controlled by the Coanda effect using an obstacle in the flow that is designed to optimize the performance of the meter. Controlling the jet path enables formation of feedback nodes of pressure on either side of the jet. This provides a predictable oscillation of the jet

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