1 // Copyright (c) 2017-2022, Lawrence Livermore National Security, LLC and other CEED contributors. 2 // All Rights Reserved. See the top-level LICENSE and NOTICE files for details. 3 // 4 // SPDX-License-Identifier: BSD-2-Clause 5 // 6 // This file is part of CEED: http://github.com/ceed 7 8 /// @file 9 /// Utility functions for setting up EULER_VORTEX 10 11 #include "../navierstokes.h" 12 #include "../qfunctions/setupgeo.h" 13 #include "../qfunctions/eulervortex.h" 14 15 PetscErrorCode NS_EULER_VORTEX(ProblemData *problem, DM dm, void *ctx) { 16 EulerTestType euler_test; 17 User user = *(User *)ctx; 18 StabilizationType stab; 19 MPI_Comm comm = PETSC_COMM_WORLD; 20 PetscBool implicit; 21 PetscBool has_curr_time = PETSC_TRUE; 22 PetscBool has_neumann = PETSC_TRUE; 23 PetscInt ierr; 24 EulerContext euler_ctx; 25 CeedQFunctionContext euler_context; 26 27 PetscFunctionBeginUser; 28 ierr = PetscCalloc1(1, &euler_ctx); CHKERRQ(ierr); 29 30 // ------------------------------------------------------ 31 // SET UP DENSITY_CURRENT 32 // ------------------------------------------------------ 33 problem->dim = 3; 34 problem->q_data_size_vol = 10; 35 problem->q_data_size_sur = 10; 36 problem->setup_vol.qfunction = Setup; 37 problem->setup_vol.qfunction_loc = Setup_loc; 38 problem->setup_sur.qfunction = SetupBoundary; 39 problem->setup_sur.qfunction_loc = SetupBoundary_loc; 40 problem->ics.qfunction = ICsEuler; 41 problem->ics.qfunction_loc = ICsEuler_loc; 42 problem->apply_vol_rhs.qfunction = Euler; 43 problem->apply_vol_rhs.qfunction_loc = Euler_loc; 44 problem->apply_vol_ifunction.qfunction = IFunction_Euler; 45 problem->apply_vol_ifunction.qfunction_loc = IFunction_Euler_loc; 46 problem->apply_inflow.qfunction = TravelingVortex_Inflow; 47 problem->apply_inflow.qfunction_loc = TravelingVortex_Inflow_loc; 48 problem->apply_outflow.qfunction = Euler_Outflow; 49 problem->apply_outflow.qfunction_loc = Euler_Outflow_loc; 50 problem->bc = Exact_Euler; 51 problem->bc_ctx = euler_ctx; 52 problem->non_zero_time = PETSC_TRUE; 53 problem->print_info = PRINT_EULER_VORTEX; 54 55 // ------------------------------------------------------ 56 // Create the libCEED context 57 // ------------------------------------------------------ 58 CeedScalar vortex_strength = 5.; // - 59 CeedScalar c_tau = 0.5; // - 60 // c_tau = 0.5 is reported as "optimal" in Hughes et al 2010 61 PetscReal center[3], // m 62 mean_velocity[3] = {1., 1., 0}; // m/s 63 PetscReal domain_min[3], domain_max[3], domain_size[3]; 64 ierr = DMGetBoundingBox(dm, domain_min, domain_max); CHKERRQ(ierr); 65 for (PetscInt i=0; i<3; i++) domain_size[i] = domain_max[i] - domain_min[i]; 66 67 // ------------------------------------------------------ 68 // Create the PETSc context 69 // ------------------------------------------------------ 70 PetscScalar meter = 1e-2; // 1 meter in scaled length units 71 PetscScalar second = 1e-2; // 1 second in scaled time units 72 73 // ------------------------------------------------------ 74 // Command line Options 75 // ------------------------------------------------------ 76 PetscOptionsBegin(comm, NULL, "Options for EULER_VORTEX problem", NULL); 77 // -- Physics 78 ierr = PetscOptionsScalar("-vortex_strength", "Strength of Vortex", 79 NULL, vortex_strength, &vortex_strength, NULL); 80 CHKERRQ(ierr); 81 PetscInt n = problem->dim; 82 PetscBool user_velocity; 83 ierr = PetscOptionsRealArray("-mean_velocity", "Background velocity vector", 84 NULL, mean_velocity, &n, &user_velocity); 85 CHKERRQ(ierr); 86 for (PetscInt i=0; i<3; i++) center[i] = .5*domain_size[i]; 87 n = problem->dim; 88 ierr = PetscOptionsRealArray("-center", "Location of vortex center", 89 NULL, center, &n, NULL); CHKERRQ(ierr); 90 ierr = PetscOptionsBool("-implicit", "Use implicit (IFunction) formulation", 91 NULL, implicit=PETSC_FALSE, &implicit, NULL); 92 CHKERRQ(ierr); 93 ierr = PetscOptionsEnum("-euler_test", "Euler test option", NULL, 94 EulerTestTypes, (PetscEnum)(euler_test = EULER_TEST_ISENTROPIC_VORTEX), 95 (PetscEnum *)&euler_test, NULL); CHKERRQ(ierr); 96 ierr = PetscOptionsEnum("-stab", "Stabilization method", NULL, 97 StabilizationTypes, (PetscEnum)(stab = STAB_NONE), 98 (PetscEnum *)&stab, NULL); CHKERRQ(ierr); 99 ierr = PetscOptionsScalar("-c_tau", "Stabilization constant", 100 NULL, c_tau, &c_tau, NULL); CHKERRQ(ierr); 101 // -- Units 102 ierr = PetscOptionsScalar("-units_meter", "1 meter in scaled length units", 103 NULL, meter, &meter, NULL); CHKERRQ(ierr); 104 meter = fabs(meter); 105 ierr = PetscOptionsScalar("-units_second","1 second in scaled time units", 106 NULL, second, &second, NULL); CHKERRQ(ierr); 107 second = fabs(second); 108 109 // -- Warnings 110 if (stab == STAB_SUPG && !implicit) { 111 ierr = PetscPrintf(comm, 112 "Warning! Use -stab supg only with -implicit\n"); 113 CHKERRQ(ierr); 114 } 115 if (user_velocity && (euler_test == EULER_TEST_1 116 || euler_test == EULER_TEST_3)) { 117 ierr = PetscPrintf(comm, 118 "Warning! Background velocity vector for -euler_test t1 and -euler_test t3 is (0,0,0)\n"); 119 CHKERRQ(ierr); 120 } 121 122 PetscOptionsEnd(); 123 124 // ------------------------------------------------------ 125 // Set up the PETSc context 126 // ------------------------------------------------------ 127 user->units->meter = meter; 128 user->units->second = second; 129 130 // ------------------------------------------------------ 131 // Set up the libCEED context 132 // ------------------------------------------------------ 133 // -- Scale variables to desired units 134 for (PetscInt i=0; i<3; i++) { 135 center[i] *= meter; 136 domain_size[i] *= meter; 137 mean_velocity[i] *= (meter/second); 138 } 139 problem->dm_scale = meter; 140 141 // -- QFunction Context 142 user->phys->stab = stab; 143 user->phys->euler_test = euler_test; 144 user->phys->implicit = implicit; 145 user->phys->has_curr_time = has_curr_time; 146 user->phys->has_neumann = has_neumann; 147 euler_ctx->curr_time = 0.; 148 euler_ctx->implicit = implicit; 149 euler_ctx->euler_test = euler_test; 150 euler_ctx->center[0] = center[0]; 151 euler_ctx->center[1] = center[1]; 152 euler_ctx->center[2] = center[2]; 153 euler_ctx->vortex_strength = vortex_strength; 154 euler_ctx->c_tau = c_tau; 155 euler_ctx->mean_velocity[0] = mean_velocity[0]; 156 euler_ctx->mean_velocity[1] = mean_velocity[1]; 157 euler_ctx->mean_velocity[2] = mean_velocity[2]; 158 euler_ctx->stabilization = stab; 159 160 CeedQFunctionContextCreate(user->ceed, &euler_context); 161 CeedQFunctionContextSetData(euler_context, CEED_MEM_HOST, CEED_USE_POINTER, 162 sizeof(*euler_ctx), euler_ctx); 163 CeedQFunctionContextSetDataDestroy(euler_context, CEED_MEM_HOST, 164 FreeContextPetsc); 165 CeedQFunctionContextRegisterDouble(euler_context, "solution time", 166 offsetof(struct EulerContext_, curr_time), 1, "Phyiscal time of the solution"); 167 CeedQFunctionContextReferenceCopy(euler_context, 168 &problem->ics.qfunction_context); 169 CeedQFunctionContextReferenceCopy(euler_context, 170 &problem->apply_vol_rhs.qfunction_context); 171 CeedQFunctionContextReferenceCopy(euler_context, 172 &problem->apply_vol_ifunction.qfunction_context); 173 CeedQFunctionContextReferenceCopy(euler_context, 174 &problem->apply_inflow.qfunction_context); 175 CeedQFunctionContextReferenceCopy(euler_context, 176 &problem->apply_outflow.qfunction_context); 177 PetscFunctionReturn(0); 178 } 179 180 PetscErrorCode PRINT_EULER_VORTEX(ProblemData *problem, 181 AppCtx app_ctx) { 182 MPI_Comm comm = PETSC_COMM_WORLD; 183 PetscErrorCode ierr; 184 EulerContext euler_ctx; 185 186 PetscFunctionBeginUser; 187 CeedQFunctionContextGetData(problem->ics.qfunction_context, CEED_MEM_HOST, 188 &euler_ctx); 189 ierr = PetscPrintf(comm, 190 " Problem:\n" 191 " Problem Name : %s\n" 192 " Test Case : %s\n" 193 " Background Velocity : %f,%f,%f\n" 194 " Stabilization : %s\n", 195 app_ctx->problem_name, EulerTestTypes[euler_ctx->euler_test], 196 euler_ctx->mean_velocity[0], 197 euler_ctx->mean_velocity[1], 198 euler_ctx->mean_velocity[2], 199 StabilizationTypes[euler_ctx->stabilization]); CHKERRQ(ierr); 200 201 CeedQFunctionContextRestoreData(problem->ics.qfunction_context, &euler_ctx); 202 PetscFunctionReturn(0); 203 } 204