Page 113 - TransAT_Tutorial_Manual

TransAT Tutorial Manual 3.2. Natural Convection in a Closed Cavity

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 velocity components in the x- and y- directions and temperature.

• 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 1e-5

• Proceed as above to set the initial state of the remaining quantities as follows
V−Velocity
Method : Constant
Value : 1e−5

Temperature
Method : Constant
Value : 300

Pressure
Method : Constant
Value : 0

Output Management
In this tab the parameters of the simulation outputs are set. For this example, only the
visualization output will be 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

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