NUMERICAL SIMULATION OF VORTEX SHEDDING PAST A CIRCULAR CYLINDER UNDER THE INFLUENCE OF BUOYANCY

B.S.VARAPRASAD PATNAIK; P.A.ASWATHA NARAYANA; K.N.SEETHARAMU

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NUMERICAL SIMULATION OF VORTEX SHEDDING PAST A CIRCULAR CYLINDER UNDER THE INFLUENCE OF BUOYANCY

机译：浮力影响下圆柱绕流涡旋的数值模拟。

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Flow past an isolated circular cylinder is numerically simulated, under the influence of aiding and opposing buoyancy. A modified velocity correction procedure is incorporated. Galerkin weighted residual formulation is employed for spatial discretization along with a second-order Runge-Kutta (R-K) time integration scheme. The influence of buoyancy on the Nusselt number, wake structures, temporal lift and drag forces have been studied. At low Reynolds numbers (for,e.g.,Re=20-40),buoyancy opposing the flow could trigger vortex shedding. The degeneration of the Karman vortex street into twin vortices is numerically simulated for a heated cylinder. The two zones of vortex shedding and twin vortices are demarcated.

机译：在辅助浮力和反向浮力的影响下，流过一个孤立的圆柱体的流动被数值模拟。结合了改进的速度校正程序。 Galerkin加权残差公式与二阶Runge-Kutta（R-K）时间积分方案一起用于空间离散。研究了浮力对努塞尔特数，尾流结构，时间升力和阻力的影响。在低雷诺数（例如，Re ＝ 20-40）下，与流动相反的浮力会触发涡旋脱落。对于加热的圆柱体，通过数值模拟将卡尔曼涡街退化为双涡。划定了涡旋脱落和双涡旋两个区域。

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来源
《International Journal of Heat and Mass Transfer》 |1999年第18期|3495-3507|共13页
作者
B.S.VARAPRASAD PATNAIK; P.A.ASWATHA NARAYANA; K.N.SEETHARAMU;
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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类热力工程理论;热学;
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机译：热浮力对平行流动圆柱体后面涡旋脱落的影响
2. Influence of Thermal Buoyancy on Vortex Shedding Behind a Rotating Circular Cylinder in Cross Flow at Subcritical Reynolds Numbers [J] . Dipankar Chatterjee, Chiranjit Sinha Journal of Heat Transfer . 2014,第5期

机译：热浮力对亚临界雷诺数下横流中旋转圆柱体后涡旋脱落的影响
3. A numerical simulation of vortex shedding from an oscillating circular cylinder [J] . E. Guilmineau, P. Queutey Journal of Fluids and Structures . 2002,第6期

机译：振荡圆柱体涡旋脱落的数值模拟
4. Numerical Simulations of Vortex Shedding of a Circular Cylinder Experiencing Oscillatory Flow at Low Keulegan-Carpenter Numbers [C] . Di Deng, Zhe Wang, Decheng Wan, International ocean and polar engineering conference;International Society of Offshore and Polar Engineers . 2018

机译：低Keulegan-Carpenter数下振荡流的圆柱涡脱落的数值模拟。
5. The Influence of End Conditions on Vortex Shedding from a Circular Cylinder in Sub-Critical Flow. [D] . Khoury, Eric. 2012

机译：最终条件对次临界流中圆柱体涡旋脱落的影响。
6. Numerical investigation of the vortex-induced vibration of an elastically mounted circular cylinder at high Reynolds number (Re = 104) and low mass ratio using the RANS code [O] . Niaz Bahadur Khan, Zainah Ibrahim, Linh Tuan The Nguyen, -1

机译：使用RANS代码对高雷诺数（Re = 104）和低质量比的弹性安装圆柱体的涡激振动进行数值研究
7. Longitudinal Vortex Excitation of Upstream Cylinder by Longitudinal Vortices Shedding Periodically from Crisscrossed Circular Cylinders. Influence of Damping Factor to Exert on Longitudinal Vortex Excitation. [O] . Isao KUMAGAI, Tsuyoshi MATSUMOTO, Tsutomu TAKAHASHI, 2003

机译：纵向圆筒的纵向涡旋旋转激发纵向涡旋周期性地从横拨圆柱体周期性脱落。阻尼因子对纵向涡旋激发施加的影响。
8. Three Dimensional Numerical Model of Vortex Shedding from a Circular Cylinder [R] . Swanson, J. C., Spaulding, M. L. 1975

机译：圆柱形涡旋脱落的三维数值模型

NUMERICAL SIMULATION OF VORTEX SHEDDING PAST A CIRCULAR CYLINDER UNDER THE INFLUENCE OF BUOYANCY

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