Evaporative destabilization of a salt crust with branched pattern formation.

ABSTRACT: The impact of salt crust formation over porous media on water evaporation is an important issue in relation with the water cycle, agriculture, building sciences and more. The salt crust is not a simple accumulation of salt crystals at the porous medium surface but undergoes complex dynamics with possible air gap formation between the crust and the porous medium surface. We report on experiments that allow to identify various crust evolution regimes depending on the competition between evaporation and vapor condensation. The various regimes are summarized in a diagram. We focus on the regime where dissolution-precipitation processes lead to the upward displacement of the salt crust and the generation of a branched pattern. It is shown that the branched pattern results from the crust upper s

SUBMITTER: Licsandru G 

PROVIDER: S-EPMC10060431 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature