Service interruption on Monday 11 July from 12:30 to 13:00: all the sites of the CCSD (HAL, EpiSciences, SciencesConf, AureHAL) will be inaccessible (network hardware connection).
Skip to Main content Skip to Navigation
Journal articles

Experimental Observation of Dissolution Finger Growth in Radial Geometry

Abstract : Reaction-infiltration instability refers to the morphological instability of a reactive fluid front flowing in a soluble porous medium. This process is important for many naturally occurring phenomena, such as the weathering and diagenesis of rocks, dissolution in salt deposits and melt extraction from the mantle. This paper is focused on experiments on dissolution finger growth in radial geometries in an analog fracture. In the experiments, pure water dissolves a plaster sample forming one of the fracture walls in a Hele-Shaw cell with controlled injection rate and aperture. The flow is directed inwards to the center, and we observe the reaction-infiltration instability developing along the relatively long perimeter of the plaster. Our experimental results show a number of features consistent with the theoretical and numerical predictions on the finger growth dynamics such as screening and selection between the fingers. Statistical properties of the dissolved part evolution with time are also investigated.
Complete list of metadata

Cited literature [50 references]  Display  Hide  Download
Contributor : Renaud Toussaint Connect in order to contact the contributor
Submitted on : Saturday, October 26, 2019 - 4:36:12 PM
Last modification on : Wednesday, November 3, 2021 - 6:47:50 AM
Long-term archiving on: : Monday, January 27, 2020 - 1:36:57 PM


Publisher files allowed on an open archive




Le Xu, Piotr Szymczak, Renaud Toussaint, Eirik Grude Flekkøy, Knut Jørgen Måløy. Experimental Observation of Dissolution Finger Growth in Radial Geometry. Frontiers in Physics, Frontiers, 2019, 1, ⟨10.3389/fphy.2019.00096⟩. ⟨insu-02334471⟩



Record views


Files downloads