location: Current position: Home >> Scientific Research >> Paper Publications

分层流体中冰脊拖曳力的数值模拟研究

Hits:

Indexed by:Journal Papers

Date of Publication:2019-08-12

Journal:水利学报

Included Journals:PKU

Volume:50

Issue:8

Page Number:969-979

ISSN No.:0559-9350

Key Words:分层流体;冰脊;拖曳力;拖曳系数;弗劳德数

Abstract:冰脊在分层流体表面的漂移运动会在内界面激发出内波,内波又会对冰脊的运动、堆积产生重要影响.利用湍流模型对冰脊在分层流体中的运行过程进行了数值模拟研究,并与已有物理模型实验结果做了比较,冰脊拖曳力和内波界面的数值模拟结果与物理实验结果吻合良好.当流场属于跨临界区时,内波的产生使冰脊拖曳力随弗劳德数Fr先增大后减小,冰脊拖曳系数随Fr的变化规律类似.当流场属于超临界区时,拖曳力随Fr增大而增大,拖曳系数不再随弗劳德数变化.当内波波峰达到最高点的时候,冰脊拖曳力达到一个峰值.

Pre One:Morphology of sea ice pressure ridges in the northwestern Weddell Sea in winter

Next One:Partitioning of solar radiation in Arctic sea ice during melt season