1 // Copyright (c) 2017-2024, 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 <ceed.h> 14 #include <petscdm.h> 15 16 #include "../navierstokes.h" 17 18 PetscErrorCode NS_EULER_VORTEX(ProblemData problem, DM dm, void *ctx, SimpleBC bc) { 19 EulerTestType euler_test; 20 User user = *(User *)ctx; 21 StabilizationType stab; 22 MPI_Comm comm = user->comm; 23 Ceed ceed = user->ceed; 24 PetscBool implicit; 25 EulerContext euler_ctx; 26 CeedQFunctionContext euler_context; 27 28 PetscFunctionBeginUser; 29 PetscCall(PetscCalloc1(1, &euler_ctx)); 30 31 // ------------------------------------------------------ 32 // SET UP DENSITY_CURRENT 33 // ------------------------------------------------------ 34 problem->dim = 3; 35 problem->ics.qfunction = ICsEuler; 36 problem->ics.qfunction_loc = ICsEuler_loc; 37 problem->apply_vol_rhs.qfunction = Euler; 38 problem->apply_vol_rhs.qfunction_loc = Euler_loc; 39 problem->apply_vol_ifunction.qfunction = IFunction_Euler; 40 problem->apply_vol_ifunction.qfunction_loc = IFunction_Euler_loc; 41 problem->apply_inflow.qfunction = TravelingVortex_Inflow; 42 problem->apply_inflow.qfunction_loc = TravelingVortex_Inflow_loc; 43 problem->apply_outflow.qfunction = Euler_Outflow; 44 problem->apply_outflow.qfunction_loc = Euler_Outflow_loc; 45 problem->compute_exact_solution_error = PETSC_TRUE; 46 problem->print_info = PRINT_EULER_VORTEX; 47 48 // ------------------------------------------------------ 49 // Create the libCEED context 50 // ------------------------------------------------------ 51 CeedScalar vortex_strength = 5.; // - 52 CeedScalar c_tau = 0.5; // - 53 // c_tau = 0.5 is reported as "optimal" in Hughes et al 2010 54 PetscReal center[3], // m 55 mean_velocity[3] = {1., 1., 0}; // m/s 56 PetscReal domain_min[3], domain_max[3], domain_size[3]; 57 PetscCall(DMGetBoundingBox(dm, domain_min, domain_max)); 58 for (PetscInt i = 0; i < 3; i++) domain_size[i] = domain_max[i] - domain_min[i]; 59 60 // ------------------------------------------------------ 61 // Create the PETSc context 62 // ------------------------------------------------------ 63 PetscScalar meter = 1e-2; // 1 meter in scaled length units 64 PetscScalar second = 1e-2; // 1 second in scaled time units 65 66 // ------------------------------------------------------ 67 // Command line Options 68 // ------------------------------------------------------ 69 PetscOptionsBegin(comm, NULL, "Options for EULER_VORTEX problem", NULL); 70 // -- Physics 71 PetscCall(PetscOptionsScalar("-vortex_strength", "Strength of Vortex", NULL, vortex_strength, &vortex_strength, NULL)); 72 PetscInt n = problem->dim; 73 PetscBool user_velocity; 74 PetscCall(PetscOptionsRealArray("-mean_velocity", "Background velocity vector", NULL, mean_velocity, &n, &user_velocity)); 75 for (PetscInt i = 0; i < 3; i++) center[i] = .5 * domain_size[i]; 76 n = problem->dim; 77 PetscCall(PetscOptionsRealArray("-center", "Location of vortex center", NULL, center, &n, NULL)); 78 PetscCall(PetscOptionsBool("-implicit", "Use implicit (IFunction) formulation", NULL, implicit = PETSC_FALSE, &implicit, NULL)); 79 PetscCall(PetscOptionsEnum("-euler_test", "Euler test option", NULL, EulerTestTypes, (PetscEnum)(euler_test = EULER_TEST_ISENTROPIC_VORTEX), 80 (PetscEnum *)&euler_test, NULL)); 81 PetscCall(PetscOptionsEnum("-stab", "Stabilization method", NULL, StabilizationTypes, (PetscEnum)(stab = STAB_NONE), (PetscEnum *)&stab, NULL)); 82 PetscCall(PetscOptionsScalar("-c_tau", "Stabilization constant", NULL, c_tau, &c_tau, NULL)); 83 // -- Units 84 PetscCall(PetscOptionsScalar("-units_meter", "1 meter in scaled length units", NULL, meter, &meter, NULL)); 85 meter = fabs(meter); 86 PetscCall(PetscOptionsScalar("-units_second", "1 second in scaled time units", NULL, second, &second, NULL)); 87 second = fabs(second); 88 89 // -- Warnings 90 if (stab == STAB_SUPG && !implicit) { 91 PetscCall(PetscPrintf(comm, "Warning! Use -stab supg only with -implicit\n")); 92 } 93 if (user_velocity && (euler_test == EULER_TEST_1 || euler_test == EULER_TEST_3)) { 94 PetscCall(PetscPrintf(comm, "Warning! Background velocity vector for -euler_test t1 and -euler_test t3 is (0,0,0)\n")); 95 } 96 97 PetscOptionsEnd(); 98 99 // ------------------------------------------------------ 100 // Set up the PETSc context 101 // ------------------------------------------------------ 102 user->units->meter = meter; 103 user->units->second = second; 104 105 // ------------------------------------------------------ 106 // Set up the libCEED context 107 // ------------------------------------------------------ 108 // -- Scale variables to desired units 109 for (PetscInt i = 0; i < 3; i++) { 110 center[i] *= meter; 111 domain_size[i] *= meter; 112 mean_velocity[i] *= (meter / second); 113 } 114 problem->dm_scale = meter; 115 116 // -- QFunction Context 117 user->phys->implicit = implicit; 118 euler_ctx->curr_time = 0.; 119 euler_ctx->implicit = implicit; 120 euler_ctx->euler_test = euler_test; 121 euler_ctx->center[0] = center[0]; 122 euler_ctx->center[1] = center[1]; 123 euler_ctx->center[2] = center[2]; 124 euler_ctx->vortex_strength = vortex_strength; 125 euler_ctx->c_tau = c_tau; 126 euler_ctx->mean_velocity[0] = mean_velocity[0]; 127 euler_ctx->mean_velocity[1] = mean_velocity[1]; 128 euler_ctx->mean_velocity[2] = mean_velocity[2]; 129 euler_ctx->stabilization = stab; 130 131 PetscCallCeed(ceed, CeedQFunctionContextCreate(user->ceed, &euler_context)); 132 PetscCallCeed(ceed, CeedQFunctionContextSetData(euler_context, CEED_MEM_HOST, CEED_USE_POINTER, sizeof(*euler_ctx), euler_ctx)); 133 PetscCallCeed(ceed, CeedQFunctionContextSetDataDestroy(euler_context, CEED_MEM_HOST, FreeContextPetsc)); 134 PetscCallCeed(ceed, CeedQFunctionContextRegisterDouble(euler_context, "solution time", offsetof(struct EulerContext_, curr_time), 1, 135 "Physical time of the solution")); 136 PetscCallCeed(ceed, CeedQFunctionContextReferenceCopy(euler_context, &problem->ics.qfunction_context)); 137 PetscCallCeed(ceed, CeedQFunctionContextReferenceCopy(euler_context, &problem->apply_vol_rhs.qfunction_context)); 138 PetscCallCeed(ceed, CeedQFunctionContextReferenceCopy(euler_context, &problem->apply_vol_ifunction.qfunction_context)); 139 PetscCallCeed(ceed, CeedQFunctionContextReferenceCopy(euler_context, &problem->apply_inflow.qfunction_context)); 140 PetscCallCeed(ceed, CeedQFunctionContextReferenceCopy(euler_context, &problem->apply_outflow.qfunction_context)); 141 PetscCallCeed(ceed, CeedQFunctionContextDestroy(&euler_context)); 142 PetscFunctionReturn(PETSC_SUCCESS); 143 } 144 145 PetscErrorCode PRINT_EULER_VORTEX(User user, ProblemData problem, AppCtx app_ctx) { 146 MPI_Comm comm = user->comm; 147 Ceed ceed = user->ceed; 148 EulerContext euler_ctx; 149 150 PetscFunctionBeginUser; 151 PetscCallCeed(ceed, CeedQFunctionContextGetData(problem->ics.qfunction_context, CEED_MEM_HOST, &euler_ctx)); 152 PetscCall(PetscPrintf(comm, 153 " Problem:\n" 154 " Problem Name : %s\n" 155 " Test Case : %s\n" 156 " Background Velocity : %f,%f,%f\n" 157 " Stabilization : %s\n", 158 app_ctx->problem_name, EulerTestTypes[euler_ctx->euler_test], euler_ctx->mean_velocity[0], euler_ctx->mean_velocity[1], 159 euler_ctx->mean_velocity[2], StabilizationTypes[euler_ctx->stabilization])); 160 161 PetscCallCeed(ceed, CeedQFunctionContextRestoreData(problem->ics.qfunction_context, &euler_ctx)); 162 PetscFunctionReturn(PETSC_SUCCESS); 163 } 164