blob: 180f10e512e54d8e431fe6ef0cb2af62e0bff0cf (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
# Parameter definitions for thorn SummationByParts
# $Header$
restricted:
KEYWORD norm_type "Type of norm" STEERABLE=always
{
"Diagonal" :: "Diagonal norm"
"Full restricted" :: "Full restricted norm"
} "Diagonal"
KEYWORD operator_type "Type of operator" STEERABLE=always
{
"Minimal Bandwidth" :: "Minimal bandwidth (except for 8-4 which is minimal spectral radius)"
"Optimized" :: "Optimized for performance"
} "Optimized"
BOOLEAN sbp_1st_deriv "Should the 1st derivative operator be SBP" STEERABLE=always
{
} "yes"
BOOLEAN sbp_2nd_deriv "Should the 2nd derivative operator be SBP" STEERABLE=always
{
} "yes"
BOOLEAN sbp_upwind_deriv "Should the upwind derivative operator be SBP" STEERABLE=always
{
} "yes"
INT order "Order of accuracy" STEERABLE=always
{
2:8:2 :: ""
} 2
BOOLEAN onesided_outer_boundaries "Evaluate derivatives within ghost zones of the outer boundary" STEERABLE=always
{
} "yes"
BOOLEAN onesided_interpatch_boundaries "Evaluate derivatives near the local grid boundary if it is an inter-patch boundary" STEERABLE=always
{
} "yes"
BOOLEAN use_dissipation "Should we add dissipation"
{
} "no"
BOOLEAN use_variable_deltas "Use extra grid functions to allow for variable delta's in the dissipation operators"
{
} "no"
BOOLEAN use_shiftout "Should we use the boundary_shift_out parameters from CoordBase to shift the stencils of derivatives and dissipation"
{
} "no"
BOOLEAN poison_derivatives "Should we poison Dvar at boundary_shiftout perimeter when taking derivatives" STEERABLE=always
{
} "no"
BOOLEAN poison_dissipation "Should we poison rhs at boundary_shiftout perimeter when applying dissipation" STEERABLE=always
{
} "no"
REAL poison_value "Degree of intoxication" STEERABLE=always
{
*:* :: "Anything you want"
} 666.0
# Note: scaling the dissipation operators with h reduces the order by one.
BOOLEAN scale_with_h "Should we scale the dissipation with the grid spacing h"
{
} "no"
KEYWORD dissipation_type "Type of dissipation operator" STEERABLE=always
{
"Mattson-Svard-Nordstrom" :: "Mattson, Svaerd and Nordstroem type"
"Kreiss-Oliger" :: "Kreiss-Oliger modified near the boundaries"
} "Mattson-Svard-Nordstrom"
REAL epsdis "Dissipation strength" STEERABLE=always
{
*:* :: "Values typical between 0 and 1"
} 0.2
REAL diss_fraction[3] "Fractional size of the transition region for the full restricted dissipation operator"
{
0:0.5 :: ""
} 0.2
REAL h_scaling[3] "Scaling factor for the local grid spacing in the dissipation operators"
{
0:* :: "Positive please"
} 1.0
STRING vars "List of evolved grid functions that should have dissipation added" STEERABLE=always
{
.* :: "Must be a valid list of grid functions"
} ""
BOOLEAN zero_derivs_y "set all derivatives to 0 in the y-direction"
{
} "no"
BOOLEAN zero_derivs_z "set all derivatives to 0 in the z-direction"
{
} "no"
# If you use this parameter be careful. You have to know what you are doing...
BOOLEAN check_grid_sizes "Should we check grid sizes and ghost zones"
{
} "yes"
|
