/RWALL/LAGMUL
Block Format Keyword Defines infinite plane rigid walls using the Lagrange multiplier method. This keyword is not available for SPMD computation.
Format
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
---|---|---|---|---|---|---|---|---|---|
/RWALL/LAGMUL/type/rwal_ID/unit_ID | |||||||||
rwal_title | |||||||||
node_ID | Slide | grnd_ID1 | grnd_ID2 | ||||||
Dsearch | |||||||||
XM | YM | ZM | |||||||
Mass | VX0 | VY0 | VZ0 | ||||||
XM1 | YM1 | ZM1 | |||||||
Blank Format |
Definitions
Field | Contents | SI Unit Example |
---|---|---|
type | Rigid wall type
keyword (see table below) |
|
rwal_ID | Rigid wall
identifier (Integer, maximum 10 digits) |
|
unit_ID | Unit Identifier (Integer, maximum 10 digits) |
|
rwal_title | Rigid wall
title. (Character, maximum 100 characters) |
|
node_ID | Node identifier (moving
rigid wall). (Integer) |
|
Slide | Sliding flag.
(Integer) |
|
grnd_ID1 | Node group defining slave
nodes to be added to the rigid wall. (Integer) |
|
grnd_ID2 | Node group defining slave
nodes to be deleted from the rigid wall. (Integer) |
|
Dsearch | Distance for slave
search. (Real) |
|
XM | X coordinate of M, if node_ID =
0. (Real) |
|
YM | Y coordinate of M, if node_ID =
0. (Real) |
|
ZM | Z coordinate of M, if node_ID =
0. (Real) |
|
Mass | Mass of the rigid wall, if
node_ID ≠
0. (Real) |
|
VX0 | Initial velocity in X
direction, if node_ID ≠
0. (Real) |
|
VY0 | Initial velocity in Y
direction, if node_ID ≠
0. (Real) |
|
VZ0 | Initial velocity in Z
direction, if node_ID ≠
0. (Real) |
|
XM1 | X coordinate of
M1 (Real) |
|
YM1 | Y coordinate of
M1 (Real) |
|
ZM1 | Z coordinate of
M1 (Real) |
Rigid Wall Type
- Type
- Description
- PLANE
- plane
Surface Input Type
- Type
- Description
- PLANE
- MM1 defines the normal direction
Comments
- The first input to define the rigid wall is the coordinates of one point M or a node_ID in case of moving rigid wall.
- The next input is the coordinate of a point M1 and possibly a point M2 (in the case of a moving wall, M1 and M2 have the same motion as node_ID).
- The slave nodes can be defined as a list by nodes and/or as the nodes that are initially at a distance less than Dsearch from the wall.
- The defined nodes must have a non-zero mass.