Numerical simulation of free-slip double-diffusive gravity currents

Abstract eng:
In situations where gravity currents develop due to thermohaline gradients, double-diffusive instabilities may also arise. When simulating these flows numerically, because of the low diffusivities of both heat and salt, highly refined grids are required for adequate resolution of the resulting small scale diffusive processes. This paper presents several high-resolution direct numerical simulations of gravity currents formed by thermohaline gradients that induce double-diffusive salt fingering.

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