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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2014.1
- 수록면
- 861 - 867 (7page)
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초록· 키워드
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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.
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참고문헌 (14)
참고문헌 신청
P. Catalano. / 2003 / Numerical Simulation of the Flow Around a Circular Cylinder at High Reynolds Numbers / Int J. Heat Fluid Flow 24:463~469
M. C. Ong. / 2009 / Numerical Simulation of Flow around a Smooth Circular Cylinder at Very High Reynolds Numbers / Marine Structures 22:142~153
A. Roshko / 1961 / Experiments of the Flow Past a Circular Cylinder at Very High Reynolds Number / J. Fluid Mechanics 10:345~356
M. Achenbach / 1968 / Distribution of Local Pressure and Skin Friction around a Circular Cylinder in CrossFlow up to Re = 5×106 / J. Fluid Mechanics 34:625~639
B. E. Launder. / 1974 / The Numerical Computation of Turbulent Flows / Computer Methods in Applied Mechanics and Engineering 3:269~289
M. C. Ong. / 2009 / Numerical Simulation of Flow around a Smooth Circular Cylinder at Very High Reynolds Numbers / Marine Structures 22:142~153
A. Roshko / 1961 / Experiments of the Flow Past a Circular Cylinder at Very High Reynolds Number / J. Fluid Mechanics 10:345~356
M. Achenbach / 1968 / Distribution of Local Pressure and Skin Friction around a Circular Cylinder in CrossFlow up to Re = 5×106 / J. Fluid Mechanics 34:625~639
B. E. Launder. / 1974 / The Numerical Computation of Turbulent Flows / Computer Methods in Applied Mechanics and Engineering 3:269~289
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