Page 213 - TransAT_Tutorial_Manual

TransAT Tutorial Manual 5.2. Particle Separator

5.2 Particle Separator

5.2.1 Prerequisites
• TransAT

• TransATUI

• Paraview (or Tecplot)

5.2.2 Introduction
In this tutorial, the Immersed Surface Technology (IST) of TransAT is coupled with its Lagrangian
Particle Tracking (LPT) capabilities. The simulation as described in this section can also be aug-
mented by turning ON the turbulence modelling feature and run with the Very Large Eddy
Simulation (VLES) model.

The problem simulated is that of a hydro-cyclone with a mixture of water and particles en-
tering through a tangential inlet. The particles which are denser than water will leave through
the bottom outlet and water will exit through the upper outlet. Particle paths are simulated using
the Lagrangian particle tracking method, whereas the fluid flow is simulated using an Eulerian
representation. The interaction between the phases is modelled by transforming the force acting
on the particles onto an Eulerian field that interacts with the flow. The case is such that particles
are volumetrically dilute, however, the momentum interaction between the particles and the fluid
is taken into account.

5.2.3 Launching TransATUI

• Double-click the TransAT icon on the Desktop.

5.2.4 Opening TransAT window

The first step in creating a new TransAT project is naming said project and giving it a location.

• Click to create a new project

• In the next window, navigate to the folder where the project will be saved

• To create a new project folder, click in the top right corner of the window

• Enter a project folder name, say particle separator, then click to create the folder

• Click to select the folder and close the browser

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Ascomp AG Switzerland 203 Version 5.7