Initial and boundary conditions

The conditions to be applied in this example are:

a)      Velocity Field [lines]

b)      Fixed Velocity [lines]

c)      Pressure Field [lines]

d)      Fixed Velocity [point]

The condition assignment of a), b) and c) will be exactly the same as in previous case and therefore no modifications are needed.

Fixed Velocity [points]

This condition is used to impose the velocity on a point, or modify the corresponding condition imposed on a line (Fixed velocity [line]). For this example this condition is going to be assigned to the top step point (see Figure 47). Both Fix_X and Fix_Y will be set to zero in order to nullify the corresponding condition imposed on the step.

Figure 68 Fixed Velocity Point condition assignment