Page 96 - TransAT_Tutorial_Manual

TransAT Tutorial Manual 3.1. Forced Convection in a Channel with Heated Walls

• Enter the following parameters in the corresponding fields then click
Type : Range
P1(Y) : 0.0
P2(Y) : 0.0005

• Select Y-axis and click to set up refinements at the top of the channel.

Type : Range
P1(Y) : 0.01
P2(Y) : 0.0095

Blocks
In TransAT, the user has the possibility to split the domain into several blocks so that the
simulation can run on several processors. Indeed, each block is allocated to one processor (but a
processor can handle several blocks). This can be done in the Blocks tab, however for this case,
the domain can be left as is.

BCs Tab
The boundary conditions must now be set for this case.

• Select BCs tab.

To see the surfaces of all or each of the boundaries, choose a boundary in the drop-down list at
the top of the BCs tab. One boundary condition of each type is available to be edited and used
from the start. Additional BCs can be created by clicking on . is used to assign a selected
BC to a highlighted surface.

Creating Boundary Conditions:
In this case, an inflow is located at X min, an outflow at X max, walls at Y min and at Y max, and
symmetry boundary conditions at Z min and Z max. Below is a set of step-by-step instructions
to create an inflow boundary condition and define its properties.

• From the Inflow BC available, click to set the properties of the boundary condition
• Fill in the inflow properties - Tab: Basic

– Inflow Data Source: From BC
– Inflow Type: Velocity based
– Inflow profile: Constant

– Inflow Velocity components: u: 0.5 v: 0.0 w: 0.0

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