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Based on the turbulent convection model (TCM) of Li & Yang (2007), we have studied the characteristics of turbulent convection in the envelopes of 2 and 5M stars at the RGB and AGB phases. The TCM has...
A comprehensive understanding of the solar magnetic cycle requires detailed modeling of the solar interior including the maintenance and variation of large scale flows (differential rotation and merid...
We live near a magnetic star whose cycles of activity are driven by dynamo action beneath the surface. In the solar convection zone, rotation couples with plasma motions to build highly organized mag...
Three dimensional studies of convection in deep spherical shells have been used to test the hypothesis that the strong jet streams on Jupiter, Saturn, Uranus, and Neptune result from convection throug...
Main-sequence massive stars possess convective cores that likely harbor strong dy-namo action. To assess the role of core convection in building magnetic fields within these stars, we employ the 3-D a...
We present the first three-dimensional simulations of fingering convection performed in a parameter regime close to the one relevant for astrophysics, and reveal the existence of simple asymptotic sca...
When a planet falls onto the surface of its host star, the added high-metallicity material does not remain in the surface layers, as often assumed, but is diluted into the interior through fingering (...
When stars like our Sun are young they rotate rapidly and are very magnetically active. We explore dynamo action in rapidly rotating suns with the 3-D MHD anelastic spherical harmonic (ASH) code. The ...
The phenomenological models of convection use characteristic length scales they do not determine but that are chosen to fit solar or stellar observations. We investigate if changes of these length sca...
Turbulent fluxes of angular momentum and heat due to rotationally affected convection play a key role in determining differential rotation of stars.
专著信息 书名 A new asymptotic method for the analysis of convection in a rapidly rotating sphere 语种 英文 撰写或编译 作者 Zhang Keke,Xinhao Liao 第一作者单位 出版社 Journal of Fluid Mechanics, 2004,Vol. 504: 327-340 出版地 出版日期...

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