论文标题

非旋转,缓慢旋转和快速旋转的湍流对流传输量表之间的连接

Connections between Non-Rotating, Slowly Rotating, and Rapidly Rotating Turbulent Convection Transport Scalings

论文作者

Aurnou, Jonathan M., Horn, Susanne, Julien, Keith

论文摘要

浮力驱动的对流可能是宇宙中动荡动作的主要驱动力,因此,物理学家,工程师,地球物理学家和天体物理学家对宇宙中的动作驱动力可能是广泛的研究。也许毫不奇怪,这些不同的社区以不同的方式讨论了对流行为的严重行为,通常在它们之间没有明显的跨话。在这里,我们试图在这些社区之间建立联系。我们这样做是通过对热量和流体动量运输如何在不旋转,缓慢旋转和快速旋转浮力驱动的对流环境中进行的一组基本规模估计来做到这一点。我们发现,可以通过一个参数(即所谓的对流Rossby Number $ \ roc $)进行缓慢而快速的旋转量表,这是一种无耗散参数,可测量相对于旋转的浮力驾驶的重要性。此外,我们在不同组使用的基于非液压的基于非液压和基于通量的浮力驱动量表之间进行映射。这样,这些量表表明,不同社区的方法之间存在干净的连接,并且许多看似不同的量表实际上是彼此同义的。

Buoyancy-driven convection is likely the dominant driver of turbulent motions in the universe, and thus, is widely studied by physicists, engineers, geophysicists and astrophysicists. Maybe unsurprisingly, these different communities discuss the gross convective behaviors in different ways, often without significant cross-talk existing between them. Here, we seek to draw connections between these communities. We do so by carrying out a set of basic scale estimations for how heat and fluid momentum transport should behave in non-rotating, slowly rotating and rapidly rotating buoyancy-driven convective environments. We find that slowly and rapidly rotating scalings can be inter-related via one parameter, the so-called convective Rossby number $\RoC$, a dissipation-free parameter measuring the importance of buoyancy driving relative to rotation. Further, we map between non-flux-based and the flux-based, buoyancy-driven scalings used by different groups. In doing so, these scalings show that there are clean connections between the different communities' approaches and that a number of the seemingly different scalings are actually synonymous with one another.

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