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Mischa Dombrowski
lbmweights
Commits
e73aa05d
Commit
e73aa05d
authored
Sep 22, 2019
by
mischa
Browse files
Minor Bugfix
parent
29bb1276
Changes
1
Hide whitespace changes
Inline
Side-by-side
lbmweights/lattice.py
View file @
e73aa05d
...
...
@@ -278,13 +278,195 @@ class Lattice:
(
1
/
(
6
*
c_s_sq
**
2
)
*
(
(
u_x
*
c_ix
[
i
]
+
u_y
*
c_iy
[
i
])
**
4
/
(
4
*
c_s_sq
**
2
)
-
(
3
*
(
u_x
**
2
+
u_y
**
2
)
*
(
u_x
*
c_ix
[
i
]
+
u_y
*
c_iy
[
i
])
**
2
)
/
(
2
*
c_s_sq
)
+
3
*
(
(
u_x
*
c_ix
[
i
]
+
u_y
*
c_iy
[
i
])
**
2
)
/
(
2
*
c_s_sq
)
+
3
/
4
*
(
u_x
**
4
+
u_y
**
4
)))
symbolic_description
.
append
(
ps
.
Assignment
(
dst
[
0
,
0
](
i
),
omega
*
feq_formula
+
(
1
-
omega
)
*
dst
[
0
,
0
](
i
))
)
if
self
.
_debug
:
raise
AssertionError
(
"debug in lbmweights not valid"
)
print
(
"debug"
)
sym
=
symbolic_description
sym
.
append
(
ps
.
Assignment
(
dst
[
0
,
0
](
0
),
-
5
*
np
.
sqrt
(
193
)
*
density
*
u_x
**
2
/
48
+
193
*
density
*
u_x
**
2
/
720
-
5
*
np
.
sqrt
(
193
)
*
density
*
u_y
**
2
/
48
+
193
*
density
*
u_y
**
2
/
720
+
23
*
density
/
324
+
193
*
np
.
sqrt
(
193
)
*
density
/
8100
))
sym
.
append
(
ps
.
Assignment
(
dst
[
0
,
0
](
1
),
density
*
u_x
**
2
*
u_y
/
2
-
1973
*
density
*
u_x
**
2
/
4800
+
43
*
np
.
sqrt
(
193
)
*
density
*
u_x
**
2
/
960
-
3
*
np
.
sqrt
(
193
)
*
density
*
u_y
**
3
/
80
-
density
*
u_y
**
3
/
8
-
773
*
density
*
u_y
**
2
/
4800
+
11
*
np
.
sqrt
(
193
)
*
density
*
u_y
**
2
/
192
-
307
*
density
*
u_y
/
1200
-
np
.
sqrt
(
193
)
*
density
*
u_y
/
240
-
91
*
np
.
sqrt
(
193
)
*
density
/
18000
+
671
*
density
/
3600
))
sym
.
append
(
ps
.
Assignment
(
dst
[
0
,
0
](
2
),
-
3
*
np
.
sqrt
(
193
)
*
density
*
u_x
**
3
/
80
-
density
*
u_x
**
3
/
8
-
773
*
density
*
u_x
**
2
/
4800
+
11
*
np
.
sqrt
(
193
)
*
density
*
u_x
**
2
/
192
+
density
*
u_x
*
u_y
**
2
/
2
-
307
*
density
*
u_x
/
1200
-
np
.
sqrt
(
193
)
*
density
*
u_x
/
240
-
1973
*
density
*
u_y
**
2
/
4800
+
43
*
np
.
sqrt
(
193
)
*
density
*
u_y
**
2
/
960
-
91
*
np
.
sqrt
(
193
)
*
density
/
18000
+
671
*
density
/
3600
))
sym
.
append
(
ps
.
Assignment
(
dst
[
0
,
0
](
3
),
density
*
u_x
**
3
/
8
+
3
*
np
.
sqrt
(
193
)
*
density
*
u_x
**
3
/
80
-
773
*
density
*
u_x
**
2
/
4800
+
11
*
np
.
sqrt
(
193
)
*
density
*
u_x
**
2
/
192
-
density
*
u_x
*
u_y
**
2
/
2
+
np
.
sqrt
(
193
)
*
density
*
u_x
/
240
+
307
*
density
*
u_x
/
1200
-
1973
*
density
*
u_y
**
2
/
4800
+
43
*
np
.
sqrt
(
193
)
*
density
*
u_y
**
2
/
960
-
91
*
np
.
sqrt
(
193
)
*
density
/
18000
+
671
*
density
/
3600
))
sym
.
append
(
ps
.
Assignment
(
dst
[
0
,
0
](
4
),
-
density
*
u_x
**
2
*
u_y
/
2
-
1973
*
density
*
u_x
**
2
/
4800
+
43
*
np
.
sqrt
(
193
)
*
density
*
u_x
**
2
/
960
+
density
*
u_y
**
3
/
8
+
3
*
np
.
sqrt
(
193
)
*
density
*
u_y
**
3
/
80
-
773
*
density
*
u_y
**
2
/
4800
+
11
*
np
.
sqrt
(
193
)
*
density
*
u_y
**
2
/
192
+
np
.
sqrt
(
193
)
*
density
*
u_y
/
240
+
307
*
density
*
u_y
/
1200
-
91
*
np
.
sqrt
(
193
)
*
density
/
18000
+
671
*
density
/
3600
))
sym
.
append
(
ps
.
Assignment
(
dst
[
0
,
0
](
5
),
density
*
u_x
**
3
/
9
+
np
.
sqrt
(
193
)
*
density
*
u_x
**
3
/
45
-
density
*
u_x
**
2
*
u_y
/
4
-
np
.
sqrt
(
193
)
*
density
*
u_x
**
2
/
40
+
41
*
density
*
u_x
**
2
/
200
-
density
*
u_x
*
u_y
**
2
/
4
+
np
.
sqrt
(
193
)
*
density
*
u_x
*
u_y
/
120
+
391
*
density
*
u_x
*
u_y
/
3000
-
91
*
density
*
u_x
/
1800
-
np
.
sqrt
(
193
)
*
density
*
u_x
/
360
+
density
*
u_y
**
3
/
9
+
np
.
sqrt
(
193
)
*
density
*
u_y
**
3
/
45
-
np
.
sqrt
(
193
)
*
density
*
u_y
**
2
/
40
+
41
*
density
*
u_y
**
2
/
200
-
91
*
density
*
u_y
/
1800
-
np
.
sqrt
(
193
)
*
density
*
u_y
/
360
+
17
*
np
.
sqrt
(
193
)
*
density
/
27000
+
131
*
density
/
5400
))
sym
.
append
(
ps
.
Assignment
(
dst
[
0
,
0
](
6
),
-
np
.
sqrt
(
193
)
*
density
*
u_x
**
3
/
45
-
density
*
u_x
**
3
/
9
-
density
*
u_x
**
2
*
u_y
/
4
-
np
.
sqrt
(
193
)
*
density
*
u_x
**
2
/
40
+
41
*
density
*
u_x
**
2
/
200
+
density
*
u_x
*
u_y
**
2
/
4
-
391
*
density
*
u_x
*
u_y
/
3000
-
np
.
sqrt
(
193
)
*
density
*
u_x
*
u_y
/
120
+
np
.
sqrt
(
193
)
*
density
*
u_x
/
360
+
91
*
density
*
u_x
/
1800
+
density
*
u_y
**
3
/
9
+
np
.
sqrt
(
193
)
*
density
*
u_y
**
3
/
45
-
np
.
sqrt
(
193
)
*
density
*
u_y
**
2
/
40
+
41
*
density
*
u_y
**
2
/
200
-
91
*
density
*
u_y
/
1800
-
np
.
sqrt
(
193
)
*
density
*
u_y
/
360
+
17
*
np
.
sqrt
(
193
)
*
density
/
27000
+
131
*
density
/
5400
))
sym
.
append
(
ps
.
Assignment
(
dst
[
0
,
0
](
7
),
density
*
u_x
**
3
/
9
+
np
.
sqrt
(
193
)
*
density
*
u_x
**
3
/
45
+
density
*
u_x
**
2
*
u_y
/
4
-
np
.
sqrt
(
193
)
*
density
*
u_x
**
2
/
40
+
41
*
density
*
u_x
**
2
/
200
-
density
*
u_x
*
u_y
**
2
/
4
-
391
*
density
*
u_x
*
u_y
/
3000
-
np
.
sqrt
(
193
)
*
density
*
u_x
*
u_y
/
120
-
91
*
density
*
u_x
/
1800
-
np
.
sqrt
(
193
)
*
density
*
u_x
/
360
-
np
.
sqrt
(
193
)
*
density
*
u_y
**
3
/
45
-
density
*
u_y
**
3
/
9
-
np
.
sqrt
(
193
)
*
density
*
u_y
**
2
/
40
+
41
*
density
*
u_y
**
2
/
200
+
np
.
sqrt
(
193
)
*
density
*
u_y
/
360
+
91
*
density
*
u_y
/
1800
+
17
*
np
.
sqrt
(
193
)
*
density
/
27000
+
131
*
density
/
5400
))
sym
.
append
(
ps
.
Assignment
(
dst
[
0
,
0
](
8
),
-
np
.
sqrt
(
193
)
*
density
*
u_x
**
3
/
45
-
density
*
u_x
**
3
/
9
+
density
*
u_x
**
2
*
u_y
/
4
-
np
.
sqrt
(
193
)
*
density
*
u_x
**
2
/
40
+
41
*
density
*
u_x
**
2
/
200
+
density
*
u_x
*
u_y
**
2
/
4
+
np
.
sqrt
(
193
)
*
density
*
u_x
*
u_y
/
120
+
391
*
density
*
u_x
*
u_y
/
3000
+
np
.
sqrt
(
193
)
*
density
*
u_x
/
360
+
91
*
density
*
u_x
/
1800
-
np
.
sqrt
(
193
)
*
density
*
u_y
**
3
/
45
-
density
*
u_y
**
3
/
9
-
np
.
sqrt
(
193
)
*
density
*
u_y
**
2
/
40
+
41
*
density
*
u_y
**
2
/
200
+
np
.
sqrt
(
193
)
*
density
*
u_y
/
360
+
91
*
density
*
u_y
/
1800
+
17
*
np
.
sqrt
(
193
)
*
density
/
27000
+
131
*
density
/
5400
))
sym
.
append
(
ps
.
Assignment
(
dst
[
0
,
0
](
9
),
-
np
.
sqrt
(
193
)
*
density
*
u_x
**
3
/
360
-
density
*
u_x
**
3
/
72
+
density
*
u_x
**
2
/
4800
+
np
.
sqrt
(
193
)
*
density
*
u_x
**
2
/
960
-
np
.
sqrt
(
193
)
*
density
*
u_x
*
u_y
/
480
+
359
*
density
*
u_x
*
u_y
/
12000
-
71
*
density
*
u_x
/
3600
+
np
.
sqrt
(
193
)
*
density
*
u_x
/
720
-
np
.
sqrt
(
193
)
*
density
*
u_y
**
3
/
360
-
density
*
u_y
**
3
/
72
+
density
*
u_y
**
2
/
4800
+
np
.
sqrt
(
193
)
*
density
*
u_y
**
2
/
960
-
71
*
density
*
u_y
/
3600
+
np
.
sqrt
(
193
)
*
density
*
u_y
/
720
-
49
*
np
.
sqrt
(
193
)
*
density
/
54000
+
137
*
density
/
10800
))
sym
.
append
(
ps
.
Assignment
(
dst
[
0
,
0
](
10
),
density
*
u_x
**
3
/
72
+
np
.
sqrt
(
193
)
*
density
*
u_x
**
3
/
360
+
density
*
u_x
**
2
/
4800
+
np
.
sqrt
(
193
)
*
density
*
u_x
**
2
/
960
-
359
*
density
*
u_x
*
u_y
/
12000
+
np
.
sqrt
(
193
)
*
density
*
u_x
*
u_y
/
480
-
np
.
sqrt
(
193
)
*
density
*
u_x
/
720
+
71
*
density
*
u_x
/
3600
-
np
.
sqrt
(
193
)
*
density
*
u_y
**
3
/
360
-
density
*
u_y
**
3
/
72
+
density
*
u_y
**
2
/
4800
+
np
.
sqrt
(
193
)
*
density
*
u_y
**
2
/
960
-
71
*
density
*
u_y
/
3600
+
np
.
sqrt
(
193
)
*
density
*
u_y
/
720
-
49
*
np
.
sqrt
(
193
)
*
density
/
54000
+
137
*
density
/
10800
))
sym
.
append
(
ps
.
Assignment
(
dst
[
0
,
0
](
11
),
-
np
.
sqrt
(
193
)
*
density
*
u_x
**
3
/
360
-
density
*
u_x
**
3
/
72
+
density
*
u_x
**
2
/
4800
+
np
.
sqrt
(
193
)
*
density
*
u_x
**
2
/
960
-
359
*
density
*
u_x
*
u_y
/
12000
+
np
.
sqrt
(
193
)
*
density
*
u_x
*
u_y
/
480
-
71
*
density
*
u_x
/
3600
+
np
.
sqrt
(
193
)
*
density
*
u_x
/
720
+
density
*
u_y
**
3
/
72
+
np
.
sqrt
(
193
)
*
density
*
u_y
**
3
/
360
+
density
*
u_y
**
2
/
4800
+
np
.
sqrt
(
193
)
*
density
*
u_y
**
2
/
960
-
np
.
sqrt
(
193
)
*
density
*
u_y
/
720
+
71
*
density
*
u_y
/
3600
-
49
*
np
.
sqrt
(
193
)
*
density
/
54000
+
137
*
density
/
10800
))
sym
.
append
(
ps
.
Assignment
(
dst
[
0
,
0
](
12
),
density
*
u_x
**
3
/
72
+
np
.
sqrt
(
193
)
*
density
*
u_x
**
3
/
360
+
density
*
u_x
**
2
/
4800
+
np
.
sqrt
(
193
)
*
density
*
u_x
**
2
/
960
-
np
.
sqrt
(
193
)
*
density
*
u_x
*
u_y
/
480
+
359
*
density
*
u_x
*
u_y
/
12000
-
np
.
sqrt
(
193
)
*
density
*
u_x
/
720
+
71
*
density
*
u_x
/
3600
+
density
*
u_y
**
3
/
72
+
np
.
sqrt
(
193
)
*
density
*
u_y
**
3
/
360
+
density
*
u_y
**
2
/
4800
+
np
.
sqrt
(
193
)
*
density
*
u_y
**
2
/
960
-
np
.
sqrt
(
193
)
*
density
*
u_y
/
720
+
71
*
density
*
u_y
/
3600
-
49
*
np
.
sqrt
(
193
)
*
density
/
54000
+
137
*
density
/
10800
))
sym
.
append
(
ps
.
Assignment
(
dst
[
0
,
0
](
13
),
-
np
.
sqrt
(
193
)
*
density
*
u_x
**
2
/
2880
-
density
*
u_x
**
2
/
14400
-
density
*
u_y
**
3
/
72
+
np
.
sqrt
(
193
)
*
density
*
u_y
**
3
/
720
-
np
.
sqrt
(
193
)
*
density
*
u_y
**
2
/
576
+
133
*
density
*
u_y
**
2
/
4800
-
77
*
density
*
u_y
/
3600
+
np
.
sqrt
(
193
)
*
density
*
u_y
/
720
-
101
*
np
.
sqrt
(
193
)
*
density
/
162000
+
289
*
density
/
32400
))
sym
.
append
(
ps
.
Assignment
(
dst
[
0
,
0
](
14
),
-
density
*
u_x
**
3
/
72
+
np
.
sqrt
(
193
)
*
density
*
u_x
**
3
/
720
-
np
.
sqrt
(
193
)
*
density
*
u_x
**
2
/
576
+
133
*
density
*
u_x
**
2
/
4800
-
77
*
density
*
u_x
/
3600
+
np
.
sqrt
(
193
)
*
density
*
u_x
/
720
-
np
.
sqrt
(
193
)
*
density
*
u_y
**
2
/
2880
-
density
*
u_y
**
2
/
14400
-
101
*
np
.
sqrt
(
193
)
*
density
/
162000
+
289
*
density
/
32400
))
sym
.
append
(
ps
.
Assignment
(
dst
[
0
,
0
](
15
),
-
np
.
sqrt
(
193
)
*
density
*
u_x
**
3
/
720
+
density
*
u_x
**
3
/
72
-
np
.
sqrt
(
193
)
*
density
*
u_x
**
2
/
576
+
133
*
density
*
u_x
**
2
/
4800
-
np
.
sqrt
(
193
)
*
density
*
u_x
/
720
+
77
*
density
*
u_x
/
3600
-
np
.
sqrt
(
193
)
*
density
*
u_y
**
2
/
2880
-
density
*
u_y
**
2
/
14400
-
101
*
np
.
sqrt
(
193
)
*
density
/
162000
+
289
*
density
/
32400
))
sym
.
append
(
ps
.
Assignment
(
dst
[
0
,
0
](
16
),
-
np
.
sqrt
(
193
)
*
density
*
u_x
**
2
/
2880
-
density
*
u_x
**
2
/
14400
-
np
.
sqrt
(
193
)
*
density
*
u_y
**
3
/
720
+
density
*
u_y
**
3
/
72
-
np
.
sqrt
(
193
)
*
density
*
u_y
**
2
/
576
+
133
*
density
*
u_y
**
2
/
4800
-
np
.
sqrt
(
193
)
*
density
*
u_y
/
720
+
77
*
density
*
u_y
/
3600
-
101
*
np
.
sqrt
(
193
)
*
density
/
162000
+
289
*
density
/
32400
))
return
ps
.
AssignmentCollection
(
symbolic_description
)
@
property
...
...
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