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The LnE multiphase CFD simulator is a multipurpose tool for carrying out both Lagrangian (granular) and Eulerian (Fluid) flow simulations in various flexible combinations. The Eulerian (fluid) flow modelling is done by using the coupled pressure-velocity model that involves fundamentally the contin…

The Discrete element method-based particle tracking is governed by Newton’s law of motion. The dynamic motion of any particle ‘a’, defined vectorially in a 3-D space by position vector ‘ra’ and mass ‘ma’, is determined by the sum of the forces acting on the particle. This balance is provided hereby…

Collision force is the summation of all direct contact collision forces experienced by the particle. The collision forces are treated by the soft sphere approach where a spring-dashpot method is applied. Therefore, any given particle ‘a’ can be simultaneously in collision with multiple particles ‘b…

On the Main UI, select ‘Force models’ from the left pane. This causes the 3 force tabs to appear in the middle pane. The first tab to appear is the ‘gravity force’ tab as shown in Fig. 3.1.The gravity tab is default set on however user is free to deselect if needed. This tab consists of gravity mag…

The execute is the final property to be edited before running a simulation. Fig. 7.1 shows the middle pane that is observed on clicking the Execute in the left pane. Here the output settings, time step settings, end time settings and autoload visualization settings are made. The time step size and …