cube_1e2_newton.prj 4.47 KB
Newer Older
1
2
3
4
5
6
<?xml version="1.0" encoding="ISO-8859-1"?>
<OpenGeoSysProject>
    <mesh>cube_1x1x1_hex_1e2.vtu</mesh>
    <geometry>cube_1x1x1.gml</geometry>
    <processes>
        <process>
7
            <name>SteadyStateDiffusion</name>
8
            <type>STEADY_STATE_DIFFUSION</type>
9
10
11
12
13
14
15
16
            <integration_order>2</integration_order>
            <jacobian_assembler>
                <type>CentralDifferences</type>
            </jacobian_assembler>
            <process_variables>
                <process_variable>pressure</process_variable>
            </process_variables>
            <secondary_variables>
17
                <secondary_variable internal_name="darcy_velocity" output_name="v"/>
18
19
20
            </secondary_variables>
        </process>
    </processes>
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
    <media>
        <medium id="0">
            <phases/>
            <properties>
                <property>
                    <name>diffusion</name>
                    <type>Constant</type>
                    <value>1</value>
                </property>
                <property>
                    <name>reference_temperature</name>
                    <type>Constant</type>
                    <value>293.15</value>
                </property>
            </properties>
        </medium>
    </media>
38
39
    <time_loop>
        <processes>
40
            <process ref="SteadyStateDiffusion">
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
                <nonlinear_solver>basic_newton</nonlinear_solver>
                <convergence_criterion>
                    <type>DeltaX</type>
                    <norm_type>NORM2</norm_type>
                    <abstol>1.e-6</abstol>
                </convergence_criterion>
                <time_discretization>
                    <type>BackwardEuler</type>
                </time_discretization>
                <time_stepping>
                    <type>SingleStep</type>
                </time_stepping>
            </process>
        </processes>
        <output>
            <type>VTK</type>
57
            <prefix>cube_1e2_newton</prefix>
58
59
60
61
            <variables>
                <variable> pressure </variable>
                <variable> v      </variable>
            </variables>
62
            <suffix>_ts_{:timestep}_t_{:time}</suffix>
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
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
        </output>
    </time_loop>
    <parameters>
        <parameter>
            <name>p0</name>
            <type>Constant</type>
            <value>0</value>
        </parameter>
        <parameter>
            <name>p_Dirichlet_left</name>
            <type>Constant</type>
            <value>1</value>
        </parameter>
        <parameter>
            <name>p_Dirichlet_right</name>
            <type>Constant</type>
            <value>-1</value>
        </parameter>
    </parameters>
    <process_variables>
        <process_variable>
            <name>pressure</name>
            <components>1</components>
            <order>1</order>
            <initial_condition>p0</initial_condition>
            <boundary_conditions>
                <boundary_condition>
                    <geometrical_set>cube_1x1x1_geometry</geometrical_set>
                    <geometry>left</geometry>
                    <type>Dirichlet</type>
                    <parameter>p_Dirichlet_left</parameter>
                </boundary_condition>
                <boundary_condition>
                    <geometrical_set>cube_1x1x1_geometry</geometrical_set>
                    <geometry>right</geometry>
                    <type>Dirichlet</type>
                    <parameter>p_Dirichlet_right</parameter>
                </boundary_condition>
            </boundary_conditions>
        </process_variable>
    </process_variables>
    <nonlinear_solvers>
        <nonlinear_solver>
            <name>basic_newton</name>
            <type>Newton</type>
            <max_iter>10</max_iter>
            <linear_solver>general_linear_solver</linear_solver>
        </nonlinear_solver>
    </nonlinear_solvers>
    <linear_solvers>
        <linear_solver>
            <name>general_linear_solver</name>
            <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
            <eigen>
                <solver_type>CG</solver_type>
                <precon_type>DIAGONAL</precon_type>
                <max_iteration_step>10000</max_iteration_step>
                <error_tolerance>1e-16</error_tolerance>
            </eigen>
            <petsc>
                <prefix>gw</prefix>
                <parameters>-gw_ksp_type cg -gw_pc_type bjacobi -gw_ksp_rtol 1e-16 -gw_ksp_max_it 10000</parameters>
            </petsc>
        </linear_solver>
    </linear_solvers>
</OpenGeoSysProject>