Skip to content
GitLab
Projects
Groups
Snippets
/
Help
Help
Support
Community forum
Keyboard shortcuts
?
Submit feedback
Contribute to GitLab
Sign in
Toggle navigation
Menu
Open sidebar
Markus Holzer
waLBerla
Commits
7fb0d512
Commit
7fb0d512
authored
Oct 28, 2021
by
Helen Schottenhamml
Browse files
Merge branch 'Fix_pystencils_version' into 'master'
Fix: Fluctuating LBM See merge request
walberla/walberla!489
parents
b123bc98
70bac688
Pipeline
#35247
failed with stages
in 230 minutes and 42 seconds
Changes
1
Pipelines
1
Hide whitespace changes
Inline
Side-by-side
tests/lbm/codegen/FluctuatingMRT.py
View file @
7fb0d512
...
...
@@ -13,6 +13,9 @@ with CodeGeneration() as ctx:
force_field
,
vel_field
=
ps
.
fields
(
"force(3), velocity(3): [3D]"
,
layout
=
'fzyx'
)
def
rr_getter
(
moment_group
):
"""Maps a group of moments to a relaxation rate (shear, bulk, even, odd)
in the 4 relaxation time thermalized LB model
"""
is_shear
=
[
is_shear_moment
(
m
,
3
)
for
m
in
moment_group
]
is_bulk
=
[
is_bulk_moment
(
m
,
3
)
for
m
in
moment_group
]
order
=
[
get_order
(
m
)
for
m
in
moment_group
]
...
...
@@ -20,24 +23,24 @@ with CodeGeneration() as ctx:
order
=
order
[
0
]
if
order
<
2
:
return
0.0
return
[
0
]
*
len
(
moment_group
)
elif
any
(
is_bulk
):
assert
all
(
is_bulk
)
return
sp
.
Symbol
(
"omega_bulk"
)
return
[
sp
.
Symbol
(
"omega_bulk"
)
]
*
len
(
moment_group
)
elif
any
(
is_shear
):
assert
all
(
is_shear
)
return
sp
.
Symbol
(
"omega_shear"
)
return
[
sp
.
Symbol
(
"omega_shear"
)
]
*
len
(
moment_group
)
elif
order
%
2
==
0
:
assert
order
>
2
return
sp
.
Symbol
(
"omega_even"
)
return
[
sp
.
Symbol
(
"omega_even"
)
]
*
len
(
moment_group
)
else
:
return
sp
.
Symbol
(
"omega_odd"
)
return
[
sp
.
Symbol
(
"omega_odd"
)
]
*
len
(
moment_group
)
method
=
create_mrt_orthogonal
(
stencil
=
LBStencil
(
Stencil
.
D3Q19
),
compressible
=
True
,
weighted
=
True
,
relaxation_rate
_getter
=
rr_getter
,
relaxation_rate
s
=
rr_getter
,
force_model
=
Guo
(
force_field
.
center_vector
)
)
...
...
Write
Preview
Supports
Markdown
0%
Try again
or
attach a new file
.
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment