Toshitsugu Tanaka

TL;DR: In this paper, a numerical code is parallelized and more than 4.5 million particles are tracked in the maximum by using 16 CPUs, and the cross-sectional area of beds is enlarged by the factors up to 82.

TL;DR: In this article, a quasi-three-dimensional numerical simulation method for axisymmetric gas-solid flows was proposed to reduce the computational load, in which the circumferential components were neglected and the particle motion was calculated threedimensionalally and was traced discretely by solving Newton's equation of motion for each particle.

TL;DR: In this paper, a discrete particle model for flows of Group A particles in Geldart's classification is studied, and it is found that the model well expresses the effects of the adhesion force on the flow structure for the case of a small adhesion effect.

TL;DR: In this article, a numerical simulation based on discrete element method (DEM) was conducted on the excavation and pushing processes of soil by a bulldozer blade, where the microscopic behavior of cohesive force was modeled analogously with macroscopic shear failure characteristics.

TL;DR: In this article, a new drag relation for monodisperse spheres is proposed and the physics behind its development is explained, which is applicable to high Stokes number gas-solid flows.