Mahajan, Vinay

Multiscale modelling of fluidized non-spherical particles

In particle fluidization simulations, it is traditionally assumed that the particles are spherical in shape. This greatly simplifies the representation of gas-solid drag and particle collisions. However, in reality industrial processes involve particles which are highly non-spherical in nature. For example, bio-mass gasification process involves milled bio-mass which are rod-like particles. The aim of this project is to study the hydrodynamics of fluidized beds containing non spherical (rod-like) particles.


-          Implement a DPM code for rod-like particles, coupled with CFD.

-          Incorporate new drag relations for translational and rotational 
           hydrodynamic forces (obtained from DNS simulations).

-          Validate these closures using PIV/DIA measurements in quasi-2D
           fluidized beds.




This work is part of the European Research Council (ERC) Grant.