Relationship between Expansion Coefficient of Standard Constrictions and the Speed of Sound in Measurement of the Flow Rate and Quantity of a Gas
The influence of the speed of sound on the expansion coefficient of constrictions is considered. It is shown that the expansion equation for standard nozzles may be expressed in terms of the speed of sound. An analysis is presented in which the criterion of the range of applicability for the gas expansion equation beyond the nozzles is evaluated in measurements of the flow rate and quantity of gas.
Keywordsconstriction flowmeter expansion of gas speed of sound
- 1.P. P. Kremlevskii, Flowmeters and Counters of the Quantity of a Substance [in Russian], Politekhnika, St. Petersburg (2002).Google Scholar
- 2.GOST 8.586.1,3,4–2005, Measurement of Flow Rate and Quantity of Liquids and Gases by Means of Standard Constrictions.Google Scholar
- 3.L. D. Landau and E. M. Lifshits, Hydrodynamics [in Russian], Fizmatlit, Moscow (2003).Google Scholar
- 4.V. P. Stulov, Lectures on Gaseodynamics [in Russian], Fizmatlit, Moscow (2004).Google Scholar
- 5.V. M. Plotnikov, V. A. Podreshetnikov, and L. N. Teterevyatnikov, Devices and Instruments for Estimating Natural Gas and Condensate [in Russian], Nedra, Moscow (1989).Google Scholar