[1G01-07] Numerical simulation and Visualization of Thermal Fluid Dynamics and Nuclear Fuel

[1G01] Numerical study on apparent viscosity of aggregated particles

*Makoto Kashima¹, Mikio Sakai² (1. Department of Systems Innovation, Faculty of Engineering, The University of Tokyo , 2. Department of Nuclear Engineering and Management, School of Engineering, The University of Tokyo)

Keywords:DEM-DNS, shear thinning, aggregation, dispersion

The inside of a glass melter is filled with slurry whose dispersion midium is platinum group metal particles, and it is reported that the slurry behave as shear thinning fluid. But its mechanisms are not investigated yet. In this study, simulating glass slurry with aggregation of platunum group metal particles using DEM-DNS, we evaluated the apparent viscosity of the slurry. Through the numerical simulation, it is implied that the shear thinning is caused by aggregation of platinum group metal particles.