Simulation of Influence of Mechanical Elements on Karman Vortex Street Parameters

Grzegorz Pankanin

Abstract


This work presents the results of numerical modeling of Karman vortex street generation performed with ANSYS/FLUENT package application. The influence of the mechanical elements located downstream of the bluff body on the vortex frequency has been found during earlier laboratory investigations. Five various geometrical configurations have been tested. Considerable differences in pictures of distributions of pressure, horizontal and vertical velocities have appeared for various configurations. Qualitative as well as quantitative results are presented in the paper. They confirm the significant dependence of the Karman vortex street parameters on the meter configuration.

Full Text:

PDF

References


T. Cousins, S.A. Foster, and P.A. Johnson, “A linear and accurate flowmeter using vortex shedding”, in Proc. Power Fluid for Process Control Symposium, Inst. Measurement and Control, Guildford, UK, 1975, pp. 45-46.

R.W. Miller, J.P. De Carlo, and J.T. Cullen, “A vortex flowmeter – calibration results and application experience”, in Proc. Flow-Con, Brighton, 1977.

D.J. Lomas, “Vortex flow metering challenges the accepted techniques”, Control & Instrumentation (1975).

H.G. Kalkhof, “Influence of the bluff body shape on the measurement characteristics of vortex flowmeters”, in Proc. Conf. on Metering of Petroleum and its Products, London, 1985.

G.L. Pankanin, “What is the role of the stagnation region in Karman vortex shedding?” Metrology and Measurement Systems, vol. XVIII, no. 3, pp. 361-370, 2011.

T. Igarashi, “Fluid flow around a bluff body used for a Karman vortex flowmeter”, in Proc. of International Symposium on Fluid Control and Measurement FLUCOME, Tokyo, 1985, pp. 1017-1022.

T. Igarashi, “Flow characteristics around a circular cylinder with a slit” (1st report, Flow control and flow patterns), Bulletin of the JSME, no. 154, pp. 656-664, 1978.

T. Igarashi, “Flow characteristics around a circular cylinder with a slit” (2nd report, Effect of boundary layer suction). Bulletin of the JSME, no. 154, pp. 1389-1397, 1978.

Tsuchiya K., Ogata S., Ueta M. (1970). Karman vortex flow meter. Bulletin of JSME, 13 (58), 573-582.

J.F. Olsen, and S. Rajagopalan, “Vortex shedding behind modified circular cylinders”, Journal of Wind Engineering and Industrial Aerodynamics, no.86, pp. 55-63, 2000.

G.L. Pankanin, “Sensitivity of Vortex Meter Characteristics on Bluff Body Design”, in Proc. of Fourth Triennal International Symposium on Fluid Control, Measurement and Visualisation FLUCOME'94, Toulouse, 1994, vol. 2, pp. 893-898.

C.O. Popiel, D.I. Robinson, and J.T. Turner, “Vortex shedding from specially shaped cylinders”, in Proc. of 11th Australasian Fluid Mechanics Conference, Hobart, 1992, pp. 503-506.

Popiel, C.O., Robinson D.I., Turner J.T. (1993). Vortex shedding from a circular cylinder with a slit and concave rear surface. Applied Scientific Research, 51, 209-215.

J.T. Turner, C.O. Popiel, and D.I. Robinson, “Evolution of an improved vortex generator”, Flow Measurement and Instrumentation, no. 4, pp.249-259, 1993.

G. Birkhoff, “Formation vortex street”, Journal of Applied Physics, vol.24, no.1, pp. 98-103, 1953.

T. Igarashi, “Performance of new type vortex shedder for vortex flowmeter”, in Proc. of Sixth Triennal International Symposium on Fluid Control, Measurement and Visualisation FLUCOME 2000, Canada, 2000, paper 028.

G.L. Pankanin, “Sensitivity of the stagnation region in the vortex meter to mechanical disturbances”, in Proc. of SPIE - Photonics Application in Astronomy, Communications, Industry, and High-Energy Physics Experiments vol. 9662, pp. 966248-1 – 966248-6, (invited paper), 2015.

D. Zheng, T. Zhang, and Y. Hu, “Experimental Investigations of the Location of a Piezoelectric Probe in a Vortex Flow Sensor”, Measurement Science and Technology, vol. 18, pp. 3777 – 3783. 2007.

A. Venugopal, A. Agrawal, and S.V. Prabhu, “Frequency Detection in Vortex Flowmeter for Low Reynolds Number using Piezoelectric Sensor and Installation Effects”, Sensors and Actuators A, vol. 184, pp. 78 – 85, 2012.

L. Euler, “Principes generaux du mouvement des fluids”, Histoire de l’Academie Royale des Sciences et te Belles Lettres,. Memoires de l’Academie Royale des Sciences et le Belles Lettres, vol. XI, pp. 274-315,1755.

M. Navier, “Memoire sur les lois du mouvement fluids”, Memoire de l’Academie Royale des Sciences de l’Institut de France, vol. VI, pp. 389-440, 1823.

G.G. Stokes, “On the theories of the internal friction of fluids in motion, and of the equilibrium and motion of elastic fluids”, Transactions of the Cambridge Philosophical Society, vol. VIII, p. 287,1845.


Refbacks

  • There are currently no refbacks.


International Journal of Electronics and Telecommunications
is a periodical of Electronics and Telecommunications Committee
of Polish Academy of Sciences

eISSN: 2300-1933