On limits to convective heat transport at infinite Prandtl number with or without rotation
On limits to convective heat transport at infinite Prandtl number with or without rotation
复制标题
无限普朗特数下旋转或不旋转时对流传热的限制
DOI:
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发表时间:
2004
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通讯作者:
Xiaodong Yan
中科院分区:
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作者:
Xiaodong Yan
We prove rigorous upper bounds for the bulk heat transport in infinite Prandtl number Rayleigh–Benard convection with or without rotation. For the rotation free case, our estimate shows that the Nusselt number is bounded by Rayleigh number according to Nu⩽c Ra4/11 with constant c<2. In the presence of rotation, we prove Nu⩽c Ra4/11(12Ta+1)4/11 with constant c<2. Moreover, for weak rotating constraint (Ta⩽O(Ra1/2)), the Nusselt number is uniformly bounded above by Nu⩽c Ra4/11.