In Giovine, P., Mariano, P. M., & Mortara, G., editors, *Micro to MACRO Mathematical Modelling in Soil Mechanics*, of *Trends in Mathematics*, pages 187–194, 2018. Springer International Publishing.

abstract bibtex

abstract bibtex

We perform coupled fluid-particle modeling to understand the collapse of underwater granular columns in comparison with dry cases, with a variety of initial aspect ratios. Our results show that the submerged collapse leads to a shorter runout and thicker front due to the resistance provided by the ambient fluid. An interesting process of vortex formation is observed in the fluid as particles turn into a shear flow. At high aspect ratios, the vortex in water can significantly modify the surface morphology of the final deposit due to the fluid inertia developed on the surface of the granular layer.

@inproceedings{jing_coupled_2018, series = {Trends in {Mathematics}}, title = {Coupled fluid-particle modeling of submerged granular collapse}, isbn = {978-3-319-99474-1}, abstract = {We perform coupled fluid-particle modeling to understand the collapse of underwater granular columns in comparison with dry cases, with a variety of initial aspect ratios. Our results show that the submerged collapse leads to a shorter runout and thicker front due to the resistance provided by the ambient fluid. An interesting process of vortex formation is observed in the fluid as particles turn into a shear flow. At high aspect ratios, the vortex in water can significantly modify the surface morphology of the final deposit due to the fluid inertia developed on the surface of the granular layer.}, booktitle = {Micro to {MACRO} {Mathematical} {Modelling} in {Soil} {Mechanics}}, publisher = {Springer International Publishing}, author = {Jing, L. and Yang, G. C. and Kwok, C. Y. and Sobral, Y. D.}, editor = {Giovine, Pasquale and Mariano, Paolo Maria and Mortara, Giuseppe}, year = {2018}, keywords = {Granular collapse, CFD-DEM, Submerged granular flow}, pages = {187--194} }

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