论文标题
分层对流的壳模型：对太阳对流难题的影响
Shell model for stratified convection: implications for the solar convective conundrum
论文作者
论文摘要
我们将壳模型的概念扩展到分层系统，并提出代表低马赫数下分层，非磁性的，非旋转对流的概念。由背景分层的曲线元素支持在恒星（例如太阳）中的对流中，我们研究了对应于高度不稳定层高度不稳定层的数值解。我们发现，在较低的prandtl数字下，对流幅度会随着下层的深度而减小。这表明可以在太阳对流区（对流难题）的较深层中抑制对流，而无需吸引旋转或磁场。
We extend the notion of a shell model to stratified systems, and propose one that represents stratified, nonmagnetic, nonrotating convection at low Mach number. Motivated by profiles of background stratification that support convection in stars such as the Sun, we study numerical solutions corresponding to a highly unstable layer above a mildly unstable layer. We find that at low Prandtl number, convective amplitudes decrease with depth in the lower layer. This suggests that the suppression of convection in the deeper layers of the Sun's convection zone (the convective conundrum) can be addressed without necessarily appealing to rotation or magnetic fields.
