Numerical simulation of the dynamic characteristics of flow fields under ice
Numerical simulation of the dynamic characteristics of flow fields under ice
复制标题
冰下流场动态特性数值模拟
DOI：
10.13679/j.advps.2014.2.00113
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发表时间：
2014-04
影响因子：
--
通讯作者：
Li Zhijun
中科院分区：
文献类型：
--
作者：
Sun Hui;Lu Peng;Li Zhijun
大气和海洋拖曳力是控制海冰漂移的主要环境力。海洋阻力包括浮冰侧面或冰脊上由水压梯度产生的形状阻力和浮冰底部粘性流产生的表面摩擦力。本文利用FLUENT软件对光滑下表面冰下的动态流动特性进行了二维数值模拟。研究了不同冰吃水和流速条件下冰下水阻力和流场分布，结果与实验室物理模型试验数据吻合较好，表明数值模式能够再现海冰与流场之间的动力相互作用。冰对流场的畸变程度随着冰吃水的增大而增大，浮冰的尾迹区出现了旋涡，旋涡中心随着冰吃水的增大而远离冰面，冰对水的模拟阻力与流速的平方呈明显的线性关系.
Atmospheric and oceanic drag are the main environmental forces controlling sea ice drift. Oceanic drag includes theform drag generated by water pressure gradients on the side of ice floes or on ice ridges, and the skin friction generated by viscousflow on the bottom of ice floes. In this study, we carried out a two-dimensional numerical simulation using FLUENT softwareto investigate the characteristics of dynamic flow under ice with a smooth undersurface. We studied water drag and flow fielddistribution below the ice under different conditions of ice draft and flow velocity, and the results agreed well with data fromlaboratory-based physical modeling tests, demonstrating the ability of the numerical model to reproduce the dynamic interactionsbetween sea ice and the flow field. The degree of distortion in the flow field caused by ice increased as the ice draft increased.Vortexes occurred in the wake field of the floe, and the centers of the vortexes moved away from the ice with increasing ice draft.The simulated drag of water on ice showed a clear linear relationship with the square of the flow velocity.
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DOI：
10.3402/tellusa.v40i2.11789
发表时间：
1988-03
期刊：
Tellus A
影响因子：
--
作者：
I. Hanssen‐Bauer;Y. Gjessing
通讯作者：
I. Hanssen‐Bauer;Y. Gjessing
DOI：
10.3724/sp.j.1084.2013.00096
发表时间：
2014-01
期刊：
Chinese Journal of Polar Research
影响因子：
--
作者：
J. Deng;C. Ke;R. Lei;Bo Sun
通讯作者：
J. Deng;C. Ke;R. Lei;Bo Sun
影响因子：
--
作者：
Bing Tan;Zhijun Li;P. Lu;C. Haas;M. Nicolaus
通讯作者：
Bing Tan;Zhijun Li;P. Lu;C. Haas;M. Nicolaus
影响因子：
4.3
作者：
C. Lüpkes;G. Birnbaum
通讯作者：
C. Lüpkes;G. Birnbaum
影响因子：
--
作者：
C. Lüpkes;V. Gryanik;J. Hartmann;E. L. Andreas
通讯作者：
C. Lüpkes;V. Gryanik;J. Hartmann;E. L. Andreas