No Slip
The
No Slip
node sets up a no-slip condition for the acoustic velocity fluctuations on a hard wall. Add this node from the
Mechanical
submenu. The condition reads
u
t
=
0
.
Constraint Settings
To display this section, click the
Show More Options
button (
) and select
Advanced Physics Options
in the
Show More Options
dialog box.
Excluded Edges/Points
To display this section, click the
Show More Options
button (
) and select
Advanced Physics Options
in the
Show More Options
dialog box. See
Suppressing Constraints on Lower Dimensions
for details.
Mechanical and thermal boundary conditions contribute such that a condition can be set on the velocity and temperature simultaneously (they do not override). Thermal type condition override each other and the same is true for mechanical type conditions.