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 "../qfunctions/eulervortex.h" 12 13 #include "../navierstokes.h" 14 #include "../qfunctions/setupgeo.h" 15 16 PetscErrorCode NS_EULER_VORTEX(ProblemData *problem, DM dm, void *ctx, SimpleBC bc) { 17 EulerTestType euler_test; 18 User user = *(User *)ctx; 19 StabilizationType stab; 20 MPI_Comm comm = PETSC_COMM_WORLD; 21 PetscBool implicit; 22 PetscBool has_curr_time = PETSC_TRUE; 23 PetscBool has_neumann = PETSC_TRUE; 24 EulerContext euler_ctx; 25 CeedQFunctionContext euler_context; 26 27 PetscFunctionBeginUser; 28 PetscCall(PetscCalloc1(1, &euler_ctx)); 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 PetscCall(DMGetBoundingBox(dm, domain_min, domain_max)); 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 PetscCall(PetscOptionsScalar("-vortex_strength", "Strength of Vortex", NULL, vortex_strength, &vortex_strength, NULL)); 79 PetscInt n = problem->dim; 80 PetscBool user_velocity; 81 PetscCall(PetscOptionsRealArray("-mean_velocity", "Background velocity vector", NULL, mean_velocity, &n, &user_velocity)); 82 for (PetscInt i = 0; i < 3; i++) center[i] = .5 * domain_size[i]; 83 n = problem->dim; 84 PetscCall(PetscOptionsRealArray("-center", "Location of vortex center", NULL, center, &n, NULL)); 85 PetscCall(PetscOptionsBool("-implicit", "Use implicit (IFunction) formulation", NULL, implicit = PETSC_FALSE, &implicit, NULL)); 86 PetscCall(PetscOptionsEnum("-euler_test", "Euler test option", NULL, EulerTestTypes, (PetscEnum)(euler_test = EULER_TEST_ISENTROPIC_VORTEX), 87 (PetscEnum *)&euler_test, NULL)); 88 PetscCall(PetscOptionsEnum("-stab", "Stabilization method", NULL, StabilizationTypes, (PetscEnum)(stab = STAB_NONE), (PetscEnum *)&stab, NULL)); 89 PetscCall(PetscOptionsScalar("-c_tau", "Stabilization constant", NULL, c_tau, &c_tau, NULL)); 90 // -- Units 91 PetscCall(PetscOptionsScalar("-units_meter", "1 meter in scaled length units", NULL, meter, &meter, NULL)); 92 meter = fabs(meter); 93 PetscCall(PetscOptionsScalar("-units_second", "1 second in scaled time units", NULL, second, &second, NULL)); 94 second = fabs(second); 95 96 // -- Warnings 97 if (stab == STAB_SUPG && !implicit) { 98 PetscCall(PetscPrintf(comm, "Warning! Use -stab supg only with -implicit\n")); 99 } 100 if (user_velocity && (euler_test == EULER_TEST_1 || euler_test == EULER_TEST_3)) { 101 PetscCall(PetscPrintf(comm, "Warning! Background velocity vector for -euler_test t1 and -euler_test t3 is (0,0,0)\n")); 102 } 103 104 PetscOptionsEnd(); 105 106 // ------------------------------------------------------ 107 // Set up the PETSc context 108 // ------------------------------------------------------ 109 user->units->meter = meter; 110 user->units->second = second; 111 112 // ------------------------------------------------------ 113 // Set up the libCEED context 114 // ------------------------------------------------------ 115 // -- Scale variables to desired units 116 for (PetscInt i = 0; i < 3; i++) { 117 center[i] *= meter; 118 domain_size[i] *= meter; 119 mean_velocity[i] *= (meter / second); 120 } 121 problem->dm_scale = meter; 122 123 // -- QFunction Context 124 user->phys->stab = stab; 125 user->phys->euler_test = euler_test; 126 user->phys->implicit = implicit; 127 user->phys->has_curr_time = has_curr_time; 128 user->phys->has_neumann = has_neumann; 129 euler_ctx->curr_time = 0.; 130 euler_ctx->implicit = implicit; 131 euler_ctx->euler_test = euler_test; 132 euler_ctx->center[0] = center[0]; 133 euler_ctx->center[1] = center[1]; 134 euler_ctx->center[2] = center[2]; 135 euler_ctx->vortex_strength = vortex_strength; 136 euler_ctx->c_tau = c_tau; 137 euler_ctx->mean_velocity[0] = mean_velocity[0]; 138 euler_ctx->mean_velocity[1] = mean_velocity[1]; 139 euler_ctx->mean_velocity[2] = mean_velocity[2]; 140 euler_ctx->stabilization = stab; 141 142 CeedQFunctionContextCreate(user->ceed, &euler_context); 143 CeedQFunctionContextSetData(euler_context, CEED_MEM_HOST, CEED_USE_POINTER, sizeof(*euler_ctx), euler_ctx); 144 CeedQFunctionContextSetDataDestroy(euler_context, CEED_MEM_HOST, FreeContextPetsc); 145 CeedQFunctionContextRegisterDouble(euler_context, "solution time", offsetof(struct EulerContext_, curr_time), 1, "Physical time of the solution"); 146 CeedQFunctionContextReferenceCopy(euler_context, &problem->ics.qfunction_context); 147 CeedQFunctionContextReferenceCopy(euler_context, &problem->apply_vol_rhs.qfunction_context); 148 CeedQFunctionContextReferenceCopy(euler_context, &problem->apply_vol_ifunction.qfunction_context); 149 CeedQFunctionContextReferenceCopy(euler_context, &problem->apply_inflow.qfunction_context); 150 CeedQFunctionContextReferenceCopy(euler_context, &problem->apply_outflow.qfunction_context); 151 PetscFunctionReturn(0); 152 } 153 154 PetscErrorCode PRINT_EULER_VORTEX(ProblemData *problem, AppCtx app_ctx) { 155 MPI_Comm comm = PETSC_COMM_WORLD; 156 EulerContext euler_ctx; 157 158 PetscFunctionBeginUser; 159 CeedQFunctionContextGetData(problem->ics.qfunction_context, CEED_MEM_HOST, &euler_ctx); 160 PetscCall(PetscPrintf(comm, 161 " Problem:\n" 162 " Problem Name : %s\n" 163 " Test Case : %s\n" 164 " Background Velocity : %f,%f,%f\n" 165 " Stabilization : %s\n", 166 app_ctx->problem_name, EulerTestTypes[euler_ctx->euler_test], euler_ctx->mean_velocity[0], euler_ctx->mean_velocity[1], 167 euler_ctx->mean_velocity[2], StabilizationTypes[euler_ctx->stabilization])); 168 169 CeedQFunctionContextRestoreData(problem->ics.qfunction_context, &euler_ctx); 170 PetscFunctionReturn(0); 171 } 172