TY - GEN
T1 - FLID-solid multiphase flow simulator using a SPH-DEM coupled method in consideration of liquid bridge force related to water content
AU - Tsuji, Kumpei
AU - Asai, Mitsuteru
N1 - Publisher Copyright:
© 2019 The Authors.
PY - 2019
Y1 - 2019
N2 - Most of the recent natural disasters such as landslide and tsunamis are complex phenomena in which fluid, ground, structures, etc. affect each other. Therefore, it is necessary to study from various mechanical viewpoints. Among them, in this research, we focus on “soil-water mixed phase flow” where fluid and soil affect each other, such as slope failure and ground collapse. In this study, ISPH method is applied for fluid simulation while DEM is applied for modelling of soil behavior. Then, a general-purpose fluid-solid multiphase flow simulator is developed using the ISPH-DEM coupling method. In addition, in DEM analysis, there are problems in consideration of apparent cohesion related to water content. In our analysis method, in order to adapt to unsaturated ground, the liquid bridge force model proposed in the powder technology field.
AB - Most of the recent natural disasters such as landslide and tsunamis are complex phenomena in which fluid, ground, structures, etc. affect each other. Therefore, it is necessary to study from various mechanical viewpoints. Among them, in this research, we focus on “soil-water mixed phase flow” where fluid and soil affect each other, such as slope failure and ground collapse. In this study, ISPH method is applied for fluid simulation while DEM is applied for modelling of soil behavior. Then, a general-purpose fluid-solid multiphase flow simulator is developed using the ISPH-DEM coupling method. In addition, in DEM analysis, there are problems in consideration of apparent cohesion related to water content. In our analysis method, in order to adapt to unsaturated ground, the liquid bridge force model proposed in the powder technology field.
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M3 - Conference contribution
AN - SCOPUS:85101973521
T3 - 6th International Conference on Particle-Based Methods. Fundamentals and Applications, PARTICLES 2019
SP - 668
EP - 679
BT - 6th International Conference on Particle-Based Methods. Fundamentals and Applications, PARTICLES 2019
A2 - Onate, Eugenio
A2 - Wriggers, P.
A2 - Zohdi, T.
A2 - Bischoff, M.
A2 - Owen, D.R.J.
PB - International Center for Numerical Methods in Engineering
T2 - 6th International Conference on Particle-Based Methods. Fundamentals and Applications, PARTICLES 2019
Y2 - 28 October 2019 through 30 October 2019
ER -