Dry granular flows with erosion/deposition process

C.-Y. Kuo; B. Nkonga; M. Ricchiuto; Y.-C. Tai; B. Braconnier

doi:10.1051/proc/2009043

Geodesic

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Dry granular flows with erosion/deposition process

C.-Y. Kuo ¹ ; B. Nkonga ² ; M. Ricchiuto ³ ; Y.-C. Tai ⁴ ; B. Braconnier ⁵

¹ Academia Sinica (Taiwan), cykuo06@gate.sinica.edu.tw
² Nice Sophia-Antipolis univ. (France), nkonga@unice.fr
³ INRIA Bordeaux Sud-Ouest(France), mario.ricchiuto@inria.fr
⁴ Chi Nan Univ (Taiwan), yctai@ncnu.edu.tw
⁵ GLAIZER group innovation agency (France), benjamin.braconnier@glaizer.com

ESAIM. Proceedings, Tome 28 (2009), pp. 135-149.

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Résumé

In this work we use the erodible model proposed by Tai and Kuo [18] to investigate complex granular flows in which deposition and erosion are significant. The initial motivation comes from experiments of granular collapse which exhibit both phenomena. A numerical model with a flux balanced scheme is developed, and the eigenstructure of its quasilinear form as well as the entropy inequality are assessed. Numerical application is performed for granular column collapse is simulated by the new well-balanced scheme. For the latter, numerical results demonstrate an upward evolution of the interface between the flowing layer and stagnant base. Comparison between the numerical and the experimental data not only illustrates the advantages of this model of erosion/deposition mechanisms but also reveals the future directions for further study.

DOI : 10.1051/proc/2009043

Affiliations des auteurs :

C.-Y. Kuo ¹ ; B. Nkonga ² ; M. Ricchiuto ³ ; Y.-C. Tai ⁴ ; B. Braconnier ⁵

@article{EP_2009_28_a8,
     author = {C.-Y. Kuo and B. Nkonga and M. Ricchiuto and Y.-C. Tai and B. Braconnier},
     title = {Dry granular flows with erosion/deposition process},
     journal = {ESAIM. Proceedings},
     pages = {135--149},
     publisher = {mathdoc},
     volume = {28},
     year = {2009},
     doi = {10.1051/proc/2009043},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1051/proc/2009043/}
}

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C.-Y. Kuo; B. Nkonga; M. Ricchiuto; Y.-C. Tai; B. Braconnier. Dry granular flows with erosion/deposition process. ESAIM. Proceedings, Tome 28 (2009), pp. 135-149. doi : 10.1051/proc/2009043. http://geodesic.mathdoc.fr/articles/10.1051/proc/2009043/

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