Basics : Non Newtonian fluid
This ICFD input deck is a simple example featuring a Non-Newtonian fluid flowing through a 2D pipe. The model chosen is a Power Law. The user is encouraged to check the velocity profile at the outlet and to compare it to the classic Poiseuille parabolic profile.
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Basics : Non Newtonian fluid
This ICFD input deck is a simple example featuring a Non-Newtonian fluid flowing through a 2D pipe. The model chosen is a Power Law. The user is encouraged to check the velocity profile at the outlet and to compare it to the classic Poiseuille parabolic profile.
*DATABASE_BINARY_D3PLOT *DEFINE_CURVE_TITLE *END *ICFD_BOUNDARY_FREESLIP *ICFD_BOUNDARY_PRESCRIBED_VEL *ICFD_BOUNDARY_PRESCRIBED_PRE *ICFD_BOUNDARY_NONSLIP *ICFD_CONTROL_OUTPUT *ICFD_CONTROL_TIME *ICFD_DATABASE_FLUX *ICFD_MAT *ICFD_MODEL_NONNEWT *ICFD_PART *ICFD_PART_VOL *ICFD_SECTION *INCLUDE *KEYWORD *MESH_BL *MESH_BL_SYM *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: Dimensionless.
$X------------------------------------------------------------------------------
$X
*KEYWORD
*TITLE
ICFD Non Newtonian fluid
*INCLUDE
mesh.k
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$ $
$ PARAMETERS $
$ $
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
*PARAMETER
R T_end 30.0
R dt_plot 5.00
$
$--- Fluid
$
R v_inlet 1.0
Rrho_fluid 1.0
R ki_fluid 0.020
R n_fluid 0.500
R dt_fluid 0.100
$
$---+----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_OUTPUT
$# msgl
3
$---+----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 &ki_fluid
$# hc tc
$# nnmoid
1
*ICFD_MODEL_NONNEWT
$# nnmoid nnid
1 1
$# k n
&ki_fluid &n_fluid
*ICFD_PART
$# pid secid mid
1 1 1
*ICFD_PART
$# pid secid mid
2 1 1
*ICFD_PART
$# pid secid mid
3 1 1
*ICFD_PART_VOL
$# pid secid mid
10 1 1
$# spid1 spid2 spid3
1 2 3
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$ $
$ ICFD BOUNDARY/INITIAL CONDITIONS $
$ $
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
*ICFD_BOUNDARY_PRESCRIBED_VEL
$# pid dof vad lcid
1 1 1 1
*ICFD_BOUNDARY_PRESCRIBED_VEL
$# pid dof vad lcid
1 2 1 2
*ICFD_BOUNDARY_PRESCRIBED_PRE
$# pid lcid
2 2
*ICFD_BOUNDARY_NONSLIP
$# pid
3
*DEFINE_CURVE_TITLE
Velocity inlet
$# lcid sidr sfa sfo offa offo dattyp
1
$# a1 o1
0 &v_inlet
10000.0 &v_inlet
*DEFINE_CURVE_TITLE
Pressure outlet
$# lcid sidr sfa sfo offa offo dattyp
2
$# a1 o1
0.0 0.0
10000.0 0.0
$---+----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 pid3
1 2 3
*MESH_BL
$# pid nelth
3 1
*MESH_BL_SYM
$# pid1
1
*MESH_BL_SYM
$# pid1
2
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$ $
$ DATABASE (OUTPUT) $
$ $
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
*ICFD_DATABASE_FLUX
$# pid
2
*ICFD_DATABASE_FLUX
$# pid
1
*DATABASE_BINARY_D3PLOT
$# dt
&dt_plot
*END
Fluid velocity fringes
This ICFD input deck is a simple example featuring a Non-Newtonian fluid flowing through a 2D pipe. The model chosen is a Power Law. The user is encouraged to check the velocity profile at the outlet and to compare it to the classic Poiseuille parabolic profile.