Page 21 - TransAT_Tutorial_Manual

TransAT Tutorial Manual 1.1. Turbulent Channel Flow

Initial Conditions
In this tab simple initial conditions can be set. In this case, initial values for all the relevant
quantities will be set to 0 except the velocity component in the x-direction.

• Select the Initial Conditions tab on the left-hand side of the TransAT user interface
• Click U-Velocity in the quantity tree

• Set Method to Constant and Value to 1
• Proceed as above to set the initial state of the remaining quantities as follows

V−Velocity
Method : Constant
Value : 0
Pressure
Method : Constant
Value : 0

Output Management Tab
In this tab the parameters of the outputs of the simulation are defined.
• Click Output Management on the left-hand side of the TransATUI

• Set the Output File Format and Frequency of output files from Iteration / timestep
number as follows
Output F i l e Format : Paraview
Frequency of output f i l e s : 100

• Click to select the variables for which data is to be saved
• Activate the following variables in the Output Variables window then click to save the
settings and close the window
Primary v a r i a b l e s :
Pressure : ON
U−Velocity : ON
V−Velocity : ON
Temperature : ON
Turbulence Modeling :
Turbulent Kinetic Energy : ON
Turbulent Dissipation Rate : ON
Eddy Viscosity : ON
Turbulence Production : ON

c
Ascomp AG Switzerland 11 Version 5.7