Browse > Article
http://dx.doi.org/10.3795/KSME-B.2005.29.12.1344

A Numerical Study on the Fluid Flow Past a Cylinder with a Periodic Array of Circular Fins  

Lee, Dong-Hyuk (LG전자 DAC 연구소)
Ha, Man-Yeong (부산대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.29, no.12, 2005 , pp. 1344-1351 More about this Journal
Abstract
Three-dimensional, time-dependent solutions of fluid flow past a circular cylinder with a periodic array of circular fins are obtained using an accurate and efficient spectral multidomain methodology. A Fourier expansion with a corresponding uniform grid is used along the circumferential direction. A spectral multidomain method with Chebyshev collocation is used along the r-z plane to handle the periodic array of circular fins attached to the surface of the cylinder. Unlike the flow past a circular cylinder, Second instabilities like mode A and mode B are not found in the Reynolds number range $100\~500$. It is found that three-dimensional instability of vortical structures is suppressed due to the presence of fin. The present numerical solutions report the detailed information of flow quantities near wake of finned cylinder.
Keywords
Circular Cylinder; Circular Fin; Near Wake; Fluid Flow; Vortex Shedding;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Mittal, R. and Balachandar, S., 1995, 'Effect of Three-Dimensionality on the Lift and Drag of Circular and Elliptic Cylinders,' Phys. Fluids, Vol. 7, No.8, pp. 1841-1865   DOI   ScienceOn
2 Mittal, R. and Balachandar, S., 1995, 'Generation of Streamwise Vertical Structures in Bluff Body Wakes,' Phys. Rev. Left. 75, pp. 1300-1302   DOI   ScienceOn
3 Mittal, R. and Balachandar, S., 1994, 'Direct Numerical Simulation of Flow Past Elliptic Cylinders,' J. Comput. Phys. 124, pp. 351-367   DOI   ScienceOn
4 Williamson, C.H.K., 1996, 'Vortex Dynamics in The Cylinder Wake,' Annu. Rev. Fluid Mech. 28, pp. 477-539   DOI   ScienceOn
5 Williamson, C.H.K., 1996, 'Three Dimensional Wake Transition,' J. Fluid Mech., Vol. 328, pp. 345-407   DOI   ScienceOn
6 Karniadakis, G.E. and Triantafyllou, G.S., 1992, 'Three Dimensional Dynamics and Transition to Turbulence in the Near Wake of Bluff Objects,' J. Fluid Mech., Vol. 238. pp. 1-30   DOI
7 Lee, D.H., Ha, M.Y., Balachandar, S. and Lee, S.S., 2004, 'Numerical Simulations of Flow and Heat Transfer Past a Circular Cylinder with a Periodic Array of Fins,' Phys. Fluids, Vol. 16, No.5, pp. 1273-1286   DOI   ScienceOn
8 Persillon, H. and Braza, M., 1998, 'Physical Analysis of the Transition to Turbulence in the Wake of a Circular Cylinder by Three-Dimensional NavierStokes Simulation,' J. Fluid Mech., Vol. 365, pp. 23-88   DOI   ScienceOn
9 Pacheco, P.S., 1997, Parallel programming with MPI, Morgan Kaufmann Publishers Inc.
10 Canuto, C., Hussaini, M.Y., Quarteroni, A. and Zhang, T.A., 1988, Spectral methods in Fluid Dynamics, Springer Verlag
11 Roshko, A., 1993, 'Perspective on Bluff Body Aerodynamics,' J. Wind Eng. And Industrial Aero. 49, pp.79-100   DOI   ScienceOn