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Abstrakty
A two-dimensional viscous, incompressible, unsteady flow past a bluff cylinder with sharp edges is simulated using a purely deterministic Lagrangian model incorporating viscous effects (diffusion and no-slip boundary condition). The method applied is based on a combination of the discrete vortex and the panel method. The viscous diffusion effect is simulated by means of the diffusion velocity method. The evolution of vortical flow past a square cylinder after its impulsive start and motion with constant velocity in resting liquid is simulated for moderate Reynolds numbers and several different angles of incidence.
Słowa kluczowe
Rocznik
Tom
Strony
69--81
Opis fizyczny
Bibliogr. 18 poz., rys.
Twórcy
autor
- The Szewalski Institute of the Fluid Flow Machinery of the Polish Academy of Sciences, 80-952 Gdańsk, ul. J, Fiszeral4, PO Box 621,, Poland
autor
- The Szewalski Institute of the Fluid Flow Machinery of the Polish Academy of Sciences, 80-952 Gdańsk, ul. J. Fiszera 14, PO Box 621, Poland, jfrk@imp.gda.pl
Bibliografia
- 1. Spalart P. R. and Leonard A.: Computation of separated flows by a vortex tracing algorithm, AIAA 14th Fluid and Plasma Dynamics Conference. AIAA Paper 81-1246, 1981
- 2. Belotserkovskii S. M., Kotovskii V. N., Nisht M. I. and Fedorov R. N{.: Mathematical Modelling of Two-Dimensional Flows with Separations, Nauka. 19BB (in Russian)
- 3. Inamuro T., Adachi T. and Sakata H.: A numerical analysis of unsteady separated flow by vortex shedding model, Bull. JSME, 26 (1983), No. 222. 2106-2112
- 4. Sarpkaya T. and Ihring C. J,: Impulsively started flow about rectangular prisms: experiments and discrete vortex analysis, ASME J. Fluids Eng.. 10B (1986), No. 1, 47-54.
- 5. Otsuka M,, Kida T., Wada M. and Kurata M.: Two-dimensional transient flows around a rectangular cylinder by a vortex method, Selected Papers 1st Int. Conf. on Vortex Methods, eds. Kamemoto, K., and Tsutahara, M. World Sci. Publ. Co. Pte. Ltd, 2000, 50-56.
- 6. Wu J. C. and Thompson J. F,: Numerical solution of time-dependent incompressible Navier-Stokes equations using an ,integro-differential formulation Computers & Fluids, 1 (1973), No. 2, 197-21,5.
- 7. Kamemoto k.: On attractive features of the vortex methods, computational Fluid Dynamics Review 1995, ed. M. Hafez and K. Oshima, John Wiley & Sons, 1995,334-353.
- 8. Wu J. C. and Gulcat TJ.: Separate treatment of attached, and, detached, flow regions ,in general viscous flows, AIAA J., 19 (1981), No. 7,20-27
- 9. Leonard A.: Vortex methods for flow simulation, J. Comput. Physics, 37 (1980), No. 3, 289-335.
- 10. Sarpkaya T.: Computational method,s with vortices - the 1988 Freeman scholar lecture, ASME J. Fluids Eng., 111 (1989), No. 1, 5-52.
- 11. Cottet G-H. and Koumoutsakos P. D.: Vortex Method,s: Theory and, Practice, Cambridge University Press, 2000
- 12. Ying L. and Zhang P,: Vortex Method,s, Science Press and Kluwer Academic Publishers, 1997
- 13. Ogami Y. and Akamatsu T.: Viscous fFlow simulation using the discrete vortex model - the diffusion velocity method,, Computers & Fluids, 19 (1991), No.3/4, 433-441
- 14. Hess J. L.: Panel method,s in computational fluid, dynamics, Ann. Rev. Fluid" 1lech.,22 (1990), 255-274.
- 15. Lewis R. L. Vortex Element Method"s for Fluid, Dynamic Analysis of Engineering Systems, Cambridge University Press, 1991.
- 16. Chorin A. J.: Numerical study of slightly viscous flow, J, Fluid Mech.,57 (1973), Part 4, 785-796.
- 17. Lewis R. L.: Surface vorticity modelling of separated, flows from two, dimensional bluff bodies of arbitrary shape, J. Mech. Eng. Sci., 23 (1981),: No. 1, 1-12
- 18. Ogami Y.: Vortex method for heat-vortex interaction and, fast summation technique, Selected Papers 1st Int. Conf. on Vortex Methods. eds. Kamemro. K., and Tsutahara, M., World Sci. Publ. Co. Pte. Ltd, 2000, 145-152
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Bibliografia
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bwmeta1.element.baztech-article-BWM2-0034-0004