Interacting density fronts in saturated brines cooled from above
Interacting density fronts in saturated brines cooled from above
复制标题
从上方冷却的饱和盐水中的相互作用密度前沿
DOI:
10.1017/jfm.2023.809
复制
发表时间:
2023
影响因子:
3.7
通讯作者:
Meiburg, E.
中科院分区:
文献类型:
--
作者:
Ezraty, R.;Rubinstein, S.M.;Lensky, N.;Meiburg, E.
When a saturated brine layer is cooled from above, both a convective temperature front as well as a front of sedimenting salt crystals can form. We employ direct numerical simulations to investigate the evolution and interaction of these two density fronts. Depending on the ratio of the temperature front velocity and the crystal settling velocity, which is governed by a dimensionless parameter in the form of a Rayleigh number, we find that either two separate fronts exist for all times, two initially separate fronts combine into a single front after some time or a single front exists at all times. We furthermore propose approximate scaling laws for the propagation of the thermal and crystal fronts in each regime and compare them with the simulation data, with generally good agreement.
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