Page 363 - TransAT_Tutorial_Manual

TransAT Tutorial Manual 9.1. Water suction

Phase Properties
The Phase Properties tab is used to define the phases of the flow. Phase properties can be
imported from the material library or defined by directly modifying the corresponding fields.

• Click Phase Properties on the left-hand side of TransATUI

• To define the first phase, under Phase 1 choose Water Liquid in the Material Library
drop-down list.

• Proceed similarly to set the fluid of Phase 2 as Air

Simulation Parameters
This tab is used to define the numerical properties of the simulation.

Simulation Type and Control Parameters

• Click Simulation Parameters on the left-hand side of the TransATUI
• Set the following parameters to solve for an unsteady flow with an implicit method.

Simulation Type : Unsteady
Time scheme : Euler 1 st Order

Control Parameters
Total Simulation Time : 2
Max Number of Time Steps : 500
ENABLE Autorelaxation
Relaxation Factor : 0.8

Equations
In this section, the convergence threshold is defined, as well as the convection scheme and other
parameters of the solvers used by TransAT.
• Select All Quantities in the equation tree

• Set Convergence Tolerance to 1e-3

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