Basics : Sloshing
It is possible to directly impose a displacement of the entire volume mesh through the use of the keyword ICFD_CONTROL_IMPOSED_MOVE. This configuration can been encountered in sloshing type applications. The current input deck is a simple example of ICFD_CONTROL_IMPOSED_MOVE combined with a free surface configuration.
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Basics : Sloshing
It is possible to directly impose a displacement of the entire volume mesh through the use of the keyword ICFD_CONTROL_IMPOSED_MOVE. This configuration can been encountered in sloshing type applications. The current input deck is a simple example of ICFD_CONTROL_IMPOSED_MOVE combined with a free surface configuration.
Fluid pressure fringes
*DATABASE_BINARY_D3PLOT *DEFINE_CURVE_TITLE *END *ICFD_BOUNDARY_NONSLIP *ICFD_CONTROL_IMPOSED_MOVE *ICFD_CONTROL_TIME *ICFD_MAT *ICFD_PART *ICFD_PART_VOL *ICFD_SECTION *INCLUDE *KEYWORD *LOAD_BODY_Z *MESH_INTERF *MESH_SURFACE_ELEMENT *MESH_SURFACE_NODE *MESH_VOLUME *PARAMETER *TITLE
$-----------------------------------------------------------------------------
$
$ Example provided by Iñaki (LSTC)
$
$ E-Mail: info@dynamore.de
$ Web: http://www.dynamore.de
$
$ Copyright, 2015 DYNAmore GmbH
$ Copying for non-commercial usage allowed if
$ copy bears this notice completely.
$
$X------------------------------------------------------------------------------
$X
$X 1. Run file as is.
$X Requires LS-DYNA MPP R9.0.0 (or higher) with double precision
$X
$X------------------------------------------------------------------------------
$# UNITS: kg/m/s
$X------------------------------------------------------------------------------
$X
*KEYWORD
*TITLE
ICFD Sloshing with global imposed move
*INCLUDE
mesh.k
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$ $
$ PARAMETERS $
$ $
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
*PARAMETER
R T_end 1.0
R dt_plot 0.02
$
$--- Fluid
$
R v_in 1.
R v_back -1.
Rrho_fluid 1000
R mu_fluid 0.001
R dt_fluid 0.020
R grav 9.81
$
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$ $
$ ICFD CONTROL CARDS $
$ $
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
*ICFD_CONTROL_TIME
$# ttm dt
&T_end &dt_fluid
*ICFD_CONTROL_IMPOSED_MOVE
$# pid lcidvx
0 1
*DEFINE_CURVE_TITLE
Velocity imposed
$# lcid sidr sfa sfo offa offo dattyp
1
$# a1 o1
0.0 &v_in
0.5 &v_in
0.52 &v_back
0.80 &v_back
0.82 0
2.00 0
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$ $
$ ICFD PARTS/ SECTION/ MATERIAL $
$ $
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
*ICFD_SECTION
$# sid
1
*ICFD_MAT
$# mid flg ro vis
1 1&rho_fluid &mu_fluid
*ICFD_MAT
$# mid flg ro vis
2 0
*ICFD_PART
$# pid secid mid
1 1 1
*ICFD_PART
$# pid secid mid
2 1 2
*ICFD_PART
$# pid secid mid
3 1 1
*ICFD_PART_VOL
$# pid secid mid
10 1 1
$# spid1 spid2
1 3
*ICFD_PART_VOL
$# pid secid mid
20 1 2
$# spid1 spid2
2 3
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$ $
$ ICFD BOUNDARY/INITIAL/LOAD CONDITIONS $
$ $
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
*ICFD_BOUNDARY_nonSLIP
$# pid
1
*ICFD_BOUNDARY_NONSLIP
$# pid
2
*LOAD_BODY_Z
$# lcid sf
2 1
*DEFINE_CURVE_TITLE
Gravity force
$# lcid sidr sfa sfo offa offo dattyp
2 &grav
$# a1 o1
0.0 1.0
10000.0 1.0
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$ $
$ ICFD MESH KEYWORDS $
$ $
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
*MESH_VOLUME
$# volid
10
$# pid1 pid2
1 2
*MESH_INTERF
$# volid
10
$# pid1
3
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$ $
$ DATABASE (OUTPUT) $
$ $
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
*DATABASE_BINARY_D3PLOT
&dt_plot
*END
It is possible to directly impose a displacement of the entire volume mesh through the use of the keyword ICFD_CONTROL_IMPOSED_MOVE. This configuration can been encountered in sloshing type applications. The current input deck is a simple example of ICFD_CONTROL_IMPOSED_MOVE combined with a free surface configuration.