Numerical Analysis of Flow Averaging Tubes in the Vortex-Shedding Regime

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This paper presents a study on flowmeters oscillatory motion when subjected to periodical, enforced vibrations induced by vortex-shedding. The proposed mathematical modelling of flow was compared to corresponding numerical simulation, in form of modal analysis. The frequencies of vortices generation and detachment were calculated for a number of flow velocities in two different flowmeter profile variants. The performed modal evaluation enabled estimating their natural frequencies, and in consequence the acquired data helped us to determine flow velocity for which the analyzed structures were prone to resonant vibrations.

[1] Spitzer D.: Flow Measurement: practical guides for measurement and control. Research Triangle Park, 1991.

[2] Baker R. C.: Flow Measurement Handbook. University of Cambridge, 2000.

[3] Wecel D., Chmielniak T., Kotowicz J.: A matematical model of the self-averaging Pitot tube. A mathematical model of a flowmeter, Flow Measurement and Instrumentation (19), 2005, pp. 301-306.

[4] Preso, Technical documentation. http:// www.preso.com

[5] Kabacinski M., Pospolita J.: Numerical and experimental research on new cross-sections of averaging pitot tubes, Flow Measurement and Instrumentation (19), 2008, pp. 17-27.

[6] Kabacinski M., Lachowicz C. T., Pospolita J.: Analysis of flowing fluid effect on flow averaging. TASK Quarterly, Vol 12(3), 2008, pp. 217-226.

[7] ANSYS/Fluent, Fluid Dynamics Analysis Package. Fluid Dynamics International Inc., 2010.

[8] Dobrowolski B., Kabacinski M., Pospolita J.: A mathematical model of the self-averaging pitot tube. a mathematical model of a flow flowmeter, Flow Measurement and Instrumentation (16), 2005, pp. 251-256.

[9] ANSYS/Gambit, Fluid Dynamics Analysis Package, Fluid Dynamics International Inc. (2010).

[10] Błazik-Borowa E., Flaga A.: Interference galloping of two Identical Circular Cylinders at Unsteady Air Onflow, In: 2EACWE, Genua 22-26 June 1997, 1997, pp. 1815-1822.

[11] Mittal S., Kumar V.: Flow-induced vibrations of light circular cylinder at Reynolds number 103 to 105, Journal of Sound and Vibration 245(5), 2001, pp. 923-946.

[12] Lewandowski R.: An application of Hartlen-Curie model and the finite element method to transient and steady state analysis of vortex-induced vibration of beam, In: Proceedings of the Second East European Conference on Wind Engineering, Prague 7-11 September, Vol. 1, 1998, pp. 121-126.

[13] Beretta S. L.: Studio di uno schema numerico per la simulazione di un cilindro oscillante in una corrente fluida a bassi numeri di Reynolds. PhD thesis, Politecnico di Milano, 2007.

[14] Zienkiewicz O. C., Taylor R. L.: The finite element method (5th edition), Vol. I,II,III, Butterworth-Heinemann, 2000.

[15] NX/Nastran, Basic Dynamic Analysis User’s Guide. UGS Corp, 2007.

[16] Hodges, D. H., Pirce D. A.: Introduction to structural dynamics and aeroelasticity, Cambridge Aerospace Series, Cambridge University Press, 2001.

[17] Introl, Corporate catalogue, Control-Measurement Apparatus.

Archive of Mechanical Engineering

The Journal of Committee on Machine Building of Polish Academy of Sciences

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CiteScore 2016: 0.44

SCImago Journal Rank (SJR) 2016: 0.162
Source Normalized Impact per Paper (SNIP) 2016: 0.459

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