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arXiv · 0910.2434

Direct Numerical Simulation of 3D Salt Fingers: From Secondary Instability to Chaotic Convection

Julian A. Simeonov·Melvin E. Stern·Timour Radko
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Abstract

The amplification and equilibration of three-dimensional salt fingers in unbounded uniform vertical gradients of temperature and salinity is modeled with a Direct Numerical Simulation in a triply periodic computational domain. A fluid dynamics video of the simulation shows that the secondary instability of the fastest growing square-planform finger mode is a combination of the well-known vertical shear instability of two-dimensional fingers [Holyer, 1984] and a new horizontal shear mode.

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Julian A. Simeonov, Melvin E. Stern, Timour Radko. 2009-10-13. Direct Numerical Simulation of 3D Salt Fingers: From Secondary Instability to Chaotic Convection. https://arxiv.org/abs/0910.2434

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