Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
권호 표지
DOI QR코드

DOI QR Code

Evaluation of URANS Turbulence Models through the Prediction of the Flow around a Circular Cylinder

원형 실린더 주위의 유동해석을 통한 URANS 난류 모델 성능 비교

  • Kim, Minjae (The 6th Research and Development Institute, Agency for Defense Development) ;
  • Shin, Jihwan (The 6th Research and Development Institute, Agency for Defense Development) ;
  • Kwon, Laeun (The 6th Research and Development Institute, Agency for Defense Development) ;
  • Lee, Kurnchul (The 6th Research and Development Institute, Agency for Defense Development)
  • 김민재 (국방과학연구소 제6기술연구본부) ;
  • 신지환 (국방과학연구소 제6기술연구본부) ;
  • 권래언 (국방과학연구소 제6기술연구본부) ;
  • 이건철 (국방과학연구소 제6기술연구본부)
  • Received : 2014.06.24
  • Accepted : 2014.11.07
  • Published : 2014.12.05
Download PDF
⟨ Previous Next ⟩

Abstract

In the present study, the flow around a circular cylinder at $Re=3.6{\time}10^6$ is numerically simulated using URANS approach. The objective of this study is to evaluate the turbulence models(Realizable k-${\varepsilon}$, RNG k-${\varepsilon}$) through the prediction of the unsteady flow characteristics around the cylinder. The time-averaged drag coefficients and vortex shedding phenomenon in the wake region are compared to available experimental data and other numerical results. The simulation with Realizable k-${\varepsilon}$ model is found to be more dissipative due to large eddy viscosity predicted in the wake region while the simulation with RNG k-${\varepsilon}$ model predicts a complex vortex shedding phenomenon with more coherent structures realistically.

Keywords

References

  1. P. Catalano, M. Wang, G. Iaccarino and P. Moin, "Numerical Simulation of the Flow Around a Circular Cylinder at High Reynolds Numbers," Int J. Heat Fluid Flow, Vol. 24, pp. 463-469, 2003. https://doi.org/10.1016/S0142-727X(03)00061-4
  2. M. C. Ong, T. Utnes, L. E. Holmedal, D. Myrhaug and B. Pettersen, "Numerical Simulation of Flow around a Smooth Circular Cylinder at Very High Reynolds Numbers," Marine Structures, Vol. 22, pp. 142-153, 2009. https://doi.org/10.1016/j.marstruc.2008.09.001
  3. A. Roshko, "Experiments of the Flow Past a Circular Cylinder at Very High Reynolds Number," J. Fluid Mechanics, Vol. 10, pp. 345-356, 1961. https://doi.org/10.1017/S0022112061000950
  4. M. Achenbach, "Distribution of Local Pressure and Skin Friction around a Circular Cylinder in Cross-Flow up to Re = 5${\time}$106," J. Fluid Mechanics, Vol. 34, pp. 625-639, 1968. https://doi.org/10.1017/S0022112068002120
  5. B. E. Launder and D. B. Spalding, "The Numerical Computation of Turbulent Flows," Computer Methods in Applied Mechanics and Engineering 3:269-289, 1974. https://doi.org/10.1016/0045-7825(74)90029-2
  6. F. R. Menter and Y. Egorov, "A Scale-Adaptive Simulation Model using Two-Equation Models," 43rd AIAA Aerospace Science Meeting and Exhibit, Reno, AIAA 2005-1095, 2005.
  7. J. C. R. Hunt, A. A. Wray and P. Moin, "Eddies Stream and Convergence Zones in Turbulent Flows," In: Proceedings of the 1998 Summer Program(CTR), pp. 193-208, 1998.
  8. M. B. Sumer and J. Fredsoe, "Hydrodynamics Around Cylindrical Structures," Advanced Series on Ocean Engineering 26, World Scientific, pp. 1-35.
  9. Y. C. Fung, "Fluctuating Lift and Drag Acting on a Cylinder in a Flow at Supercritical Reynolds Numbers," J. Aeronautical Sci., Vol. 27, pp. 801-814, 1960.
  10. W. D. James, S. W. Paris and G. V. Malcolm, "Study of Viscous Cross Flow Effects on Circular Cylinders at High Reynolds Numbers," AIAA Journal, Vol. 18, pp. 1066-1072, 1980. https://doi.org/10.2514/3.50855
  11. G. W. Jones, "Unsteady Lift Forces Generated by Vortex Shedding about Large Stationary and Oscillating Cylinders at High Reynolds Numbers," In: ASME Proceedings of the Symposium on Unsteady Flow, Philadelphia, 68-FE-36, 1968.
  12. G. Schewe, "On the Force Fluctuations Acting on a Circular Cylinder in Cross Flow from Subcritical Up to Transcritical Reynolds Numbers," J. Fluid Mechanics, Vol. 133, pp. 265-285, 1983. https://doi.org/10.1017/S0022112083001913
  13. M. M. Zdravkovich, "Flow Around Circular Cylinders," New York, Oxford University Press, Vol. 1 : Fundamentals, 1997.
  14. S. A. Orszag, et. al., "Renormalization Group Modeling and Turbulence Simulations," Near-Wall Turbulent Flows, R.M.C.So(ed.), pp. 1031-1046.