Page 188 - TransAT_Tutorial_Manual

TransAT Tutorial Manual 4.5. Spillway

Now a SubBC will be created for water inflow:
• Select All surfaces in the drop-down list at the top of the BCs tab

• With a simple click, highlight XMIN 0 in the surface tree.

• Click to create a subBC. The button is visible next to the other buttons once XMIN 0
is selected.

• Set the value of Ymin and Ymax as follows: Ymin = 0.75 and Ymax = 3.26

• Click

Assigning Boundary Conditions:
• Select All surfaces in the drop-down list at the top of the BCs tab

• Highlight XMIN 0 in the surface tree. Choose lower SubBC previously created (for Ymin =
0.75 and Ymax = 3.26).

• Tick inflowWater in the list of boundary conditions by clicking the light grey square at the
corresponding line of the boundary conditions table

• Click

XMAX 0, YMAX 0 in the surface tree takes the colour associated with the inflowAir boundary
condition (see boundary conditions table) after being assigned. Choose also XMIN 0 upper SubBC
and set it to inflowAir.

• Proceed similarly as above to assign the remaining surfaces to their corresponding boundary
conditions given below.

Boundary : YMIN 0 , ZMIN 0
Type : wall

Boundary : ZMAX 0
Type : symmetry

The mesh is now ready.

• Click Files in the top left corner then select Save

c
Ascomp AG Switzerland 178 Version 5.7