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논문 기본 정보

자료유형
학술대회자료
저자정보
Z. P. Geng (부산대학교) W. G. Park (부산대학교)
저널정보
한국전산유체공학회 한국전산유체공학회 학술대회논문집 한국전산유체공학회 2012년도 추계학술대회 논문집
발행연도
2012.11
수록면
130 - 136 (7page)

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This paper investigates flow past both stationary and rotating cylinder at different Reynolds numbers. It focuses on the analysis of two-dimensional simulation based on the finite volume method. Laminar model is chosen for Re<2000 and k-e turbulence model is used for large Reynolds numbers. The flow past a rotating cylinder examined at different Re with same rotation speed, It also shows the evolution of lift and drag coefficients computed from two-dimensional simulation. As Re increases from 500, periodic fluctuation of C<SUB>l</SUB> and C<SUB>d</SUB> begins to be shown significantly. Through calculating Strouhal numbers for every case, the frequency of vortex shedding will be obtained The results reveal regularity of Strouhal numbers change both for stationary and rotating cylinder. Strouhal number is found to increase with Re becomes larger, and it is also proved by lift coefficient curve through fluent simulations. Characteristics of vortex flow between these two kinds of cylinder is obtained. It is validated against previous experimental data for mean surface pressure, skin drag and lift coefficients, characteristics of vortex both in steady and unsteady state, and also for Strouhal frequency of vortex shedding and also comparison with other computational results.

목차

1. Introduction
2. Numerical simulation
3. Result and discussion
4. Conclusion
Acknowledgements
References

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UCI(KEPA) : I410-ECN-0101-2014-422-000810434