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Numerical analysis of oscillating flow around a cylinder

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
This paper presents the numerical model of the measuring stand - the wind tunnel, in which there is fixed a cylinder with a turbulent inlet oscillating stream. The aim of this work is the juxtaposition and comparison of characteristic values concerning the oscillating turbulent flow around the cylinder, obtained from the experiment conducted in the wind tunnel at the Institute of Thermal Machinery with the data obtained as a result of numerical modelling of unsteady phenomena. The model discussed in this paper was created using a commercial program ANSYS FLUENT that is used for mathematical modelling of flow and heat transfer processes. The expected outcome of this study is possibility of the numerical modelling of the stand concerning the analogous unsteady flows without significant investment of time. Comparison of longitudinal and transverse velocity profiles in aerodynamic wake and the pressure coefficient distributions on the cylinder surface show similarities between experimental and numerical studies.
Rocznik
Strony
59--66
Opis fizyczny
Bibliogr. 10 poz., rys.
Twórcy
autor
  • Institute of Thermal Machinery, Czestochowa University of Technology Częstochowa, Poland
Bibliografia
  • [1] Elsner J.W., Drobniak S., Metrologia turbulencji przepływów, Seria Maszyny Przepływowe, tom 18, Ossolineum, 1995.
  • [2] Zdravkovich M.M., Flow around Circular Cylinders, Vol. 1, Fundamentals, First edition,Oxford University Press, New York 1997.
  • [3] Griffin O.M., Hall M.S., Review - vortex shedding lock - on and flow control in bluff body wakes, ASME Journal of Fluids Engng. 1991, 113, 526-537.
  • [4] Armstrong B.J., Barnes F.H., Grand J., The effect of perturbations on the flow over a cylinder, Phys. Fluids 1996, 29, 2095-2102.
  • [5] Jarza A., Podolski M., Turbulence structure in the vortex formation region behind a circular cylinder in lock-on conditions, European Journal of Mechanics B/Fluids 2004, 23, 535-550.
  • [6] Podolski M., Unsteady heat transfer from a circular cylinder in turbulent oscillation flow, Chemical and Process Eng. 2006, 27, 3/1, 695-705.
  • [7] ANSYS FLUENT 13.1 Theory Guide.
  • [8] Catalano P., Wang M., Iaccarino G., Moin P., Numerical simulation of the flow around a circular cylinder at high Reynolds numbers, Internat. J. of Heat and Fluid Flow 2003, 24, 463-469.
  • [9] Gnatowska R., Aerodynamic characteristics of two-dimensional sharp-edged objects in tandem arrangement, Arch. of Mech. 2008, 60, 6, 475-490.
  • [10] Bosch G., Rodi W., Simulation of vortex shedding past a square cylinder with different turbulence models, International Journal of Numerical Methods of Fluids 1998, 28, 601-616.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-8cb86430-ca44-4d8f-bcfa-a93378b27d6e
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