Line data Source code
1 : ///////////////////////////////////////////////////////////////////////////////
2 : // Copyright 2019 Lakshman Anumolu, Raunak Bardia.
3 : //
4 : // Redistribution and use in source and binary forms, with or without
5 : // modification, are permitted provided that the following conditions are
6 : // met:
7 : //
8 : // 1. Redistributions of source code must retain the above copyright notice,
9 : // this list of conditions and the following disclaimer.
10 : //
11 : // 2. Redistributions in binary form must reproduce the above copyright notice,
12 : // this list of conditions and the following disclaimer in the documentation
13 : // and/or other materials provided with the distribution.
14 : //
15 : // 3. Neither the name of the copyright holder nor the names of its contributors
16 : // may be used to endorse or promote products derived from this software without
17 : // specific prior written permission.
18 : //
19 : // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 : // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 : // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 : // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 : // HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 : // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 : // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 : // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 : // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 : // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 : // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 : ///////////////////////////////////////////////////////////////////////////////
31 :
32 : #include "gals/analytical-fields/velocity.h"
33 :
34 : #include <string>
35 :
36 : #include "gals/utilities/utilities.h"
37 :
38 : template <typename T_GRID, typename T>
39 1 : GALS::ANALYTICAL_FIELDS::Velocity<T_GRID, T>::Velocity(const T_GRID& grid, const GALS::INPUT_FIELDS::Velocity& inputs)
40 1 : : m_grid(grid), m_inputs(inputs)
41 : {
42 1 : }
43 :
44 : template <typename T_GRID, typename T>
45 1 : GALS::ANALYTICAL_FIELDS::Velocity<T_GRID, T>::~Velocity()
46 : {
47 1 : }
48 :
49 : template <typename T_GRID, typename T>
50 1 : void GALS::ANALYTICAL_FIELDS::Velocity<T_GRID, T>::compute(
51 : const GALS::CPU::Array<T_GRID, GALS::CPU::Vec3<T>>& positions, const T time,
52 : GALS::CPU::LevelsetVelocity<T_GRID, T>& levelset_velocity)
53 : {
54 2 : const GALS::CPU::Vec3<int> num_cells = positions.numCells();
55 1 : const auto& velocity_name = m_inputs.name;
56 :
57 1 : switch (velocity_name_map[velocity_name]) {
58 : case VelocityFieldNames::CIRCULAR: {
59 : auto& velocity = levelset_velocity.velocity();
60 :
61 : if (T_GRID::dim == 1)
62 : GALS_FUNCTION_NOT_IMPLEMENTED(
63 : "GALS::ANALYTICAL_FIELDS::Velocity::compute: CIRCULAR velocity field for 1D grid.");
64 :
65 : T coeff = pi() / static_cast<T>(3.15);
66 2 : GALS::CPU::Vec3<T> velocity_node;
67 :
68 21 : for (int i = 0; i < num_cells[0]; ++i)
69 210 : for (int j = 0; j < num_cells[1]; ++j)
70 300 : for (int k = 0; k < num_cells[2]; ++k) {
71 500 : for (int cmpt = 0; cmpt < T_GRID::dim; ++cmpt) {
72 300 : if (cmpt == 0) velocity_node[cmpt] = coeff * (m_inputs.center[cmpt] - positions(i, j, k)[cmpt + 1]);
73 300 : if (cmpt == 1) velocity_node[cmpt] = coeff * (positions(i, j, k)[cmpt - 1] - m_inputs.center[cmpt]);
74 : }
75 :
76 100 : velocity(i, j, k) = velocity_node;
77 : }
78 :
79 : // Compute velocity gradient using analytical expressions.
80 2 : if (!strcmp(m_inputs.gradient_scheme.c_str(), "ANALYTICAL")) {
81 : auto& velocity_gradient = levelset_velocity.velocityGradient();
82 :
83 21 : for (int i = 0; i < num_cells[0]; ++i)
84 210 : for (int j = 0; j < num_cells[1]; ++j)
85 300 : for (int k = 0; k < num_cells[2]; ++k) {
86 500 : for (int cmpt = 0; cmpt < T_GRID::dim; ++cmpt) {
87 1000 : for (int derv = 0; derv < T_GRID::dim; ++derv) {
88 400 : if (cmpt == 0 && derv == 0) velocity_gradient[cmpt][derv] = static_cast<T>(0);
89 400 : if (cmpt == 0 && derv == 1) velocity_gradient[cmpt][derv] = -coeff;
90 400 : if (cmpt == 1 && derv == 0) velocity_gradient[cmpt][derv] = coeff;
91 400 : if (cmpt == 1 && derv == 1) velocity_gradient[cmpt][derv] = static_cast<T>(0);
92 : }
93 : }
94 : }
95 : }
96 :
97 : break;
98 : }
99 :
100 : default:
101 : break;
102 : }
103 1 : }
104 :
105 : template class GALS::ANALYTICAL_FIELDS::Velocity<GALS::CPU::Grid<double, 1>, double>;
106 : template class GALS::ANALYTICAL_FIELDS::Velocity<GALS::CPU::Grid<double, 2>, double>;
107 3 : template class GALS::ANALYTICAL_FIELDS::Velocity<GALS::CPU::Grid<double, 3>, double>;
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