1 // Copyright (c) 2017-2022, Lawrence Livermore National Security, LLC and other 2 // CEED contributors. All Rights Reserved. See the top-level LICENSE and NOTICE 3 // files for details. 4 // 5 // SPDX-License-Identifier: BSD-2-Clause 6 // 7 // This file is part of CEED: http://github.com/ceed 8 9 /// @file 10 /// Utility functions for setting up DENSITY_CURRENT 11 12 #include "../qfunctions/densitycurrent.h" 13 14 #include "../navierstokes.h" 15 16 PetscErrorCode NS_DENSITY_CURRENT(ProblemData *problem, DM dm, void *ctx) { 17 MPI_Comm comm = PETSC_COMM_WORLD; 18 User user = *(User *)ctx; 19 DensityCurrentContext dc_ctx; 20 CeedQFunctionContext density_current_context; 21 NewtonianIdealGasContext newtonian_ig_ctx; 22 23 PetscFunctionBeginUser; 24 PetscCall(NS_NEWTONIAN_IG(problem, dm, ctx)); 25 PetscCall(PetscCalloc1(1, &dc_ctx)); 26 // ------------------------------------------------------ 27 // SET UP DENSITY_CURRENT 28 // ------------------------------------------------------ 29 CeedQFunctionContextDestroy(&problem->ics.qfunction_context); 30 problem->ics.qfunction = ICsDC; 31 problem->ics.qfunction_loc = ICsDC_loc; 32 33 // ------------------------------------------------------ 34 // Create the libCEED context 35 // ------------------------------------------------------ 36 CeedScalar theta0 = 300.; // K 37 CeedScalar thetaC = -15.; // K 38 CeedScalar P0 = 1.e5; // Pa 39 CeedScalar N = 0.01; // 1/s 40 CeedScalar rc = 1000.; // m (Radius of bubble) 41 PetscReal center[3], dc_axis[3] = {0, 0, 0}; 42 PetscReal domain_min[3], domain_max[3], domain_size[3]; 43 PetscCall(DMGetBoundingBox(dm, domain_min, domain_max)); 44 for (PetscInt i = 0; i < 3; i++) domain_size[i] = domain_max[i] - domain_min[i]; 45 46 // ------------------------------------------------------ 47 // Command line Options 48 // ------------------------------------------------------ 49 PetscOptionsBegin(comm, NULL, "Options for DENSITY_CURRENT problem", NULL); 50 PetscCall(PetscOptionsScalar("-theta0", "Reference potential temperature", NULL, theta0, &theta0, NULL)); 51 PetscCall(PetscOptionsScalar("-thetaC", "Perturbation of potential temperature", NULL, thetaC, &thetaC, NULL)); 52 PetscCall(PetscOptionsScalar("-P0", "Atmospheric pressure", NULL, P0, &P0, NULL)); 53 PetscCall(PetscOptionsScalar("-N", "Brunt-Vaisala frequency", NULL, N, &N, NULL)); 54 PetscCall(PetscOptionsScalar("-rc", "Characteristic radius of thermal bubble", NULL, rc, &rc, NULL)); 55 for (PetscInt i = 0; i < 3; i++) center[i] = .5 * domain_size[i]; 56 PetscInt n = problem->dim; 57 PetscCall(PetscOptionsRealArray("-center", "Location of bubble center", NULL, center, &n, NULL)); 58 n = problem->dim; 59 PetscCall(PetscOptionsRealArray("-dc_axis", 60 "Axis of density current cylindrical anomaly, " 61 "or {0,0,0} for spherically symmetric", 62 NULL, dc_axis, &n, NULL)); 63 { 64 PetscReal norm = PetscSqrtReal(PetscSqr(dc_axis[0]) + PetscSqr(dc_axis[1]) + PetscSqr(dc_axis[2])); 65 if (norm > 0) { 66 for (PetscInt i = 0; i < 3; i++) dc_axis[i] /= norm; 67 } 68 } 69 70 PetscOptionsEnd(); 71 72 PetscScalar meter = user->units->meter; 73 PetscScalar second = user->units->second; 74 PetscScalar Kelvin = user->units->Kelvin; 75 PetscScalar Pascal = user->units->Pascal; 76 rc = fabs(rc) * meter; 77 theta0 *= Kelvin; 78 thetaC *= Kelvin; 79 P0 *= Pascal; 80 N *= (1. / second); 81 for (PetscInt i = 0; i < 3; i++) center[i] *= meter; 82 83 dc_ctx->theta0 = theta0; 84 dc_ctx->thetaC = thetaC; 85 dc_ctx->P0 = P0; 86 dc_ctx->N = N; 87 dc_ctx->rc = rc; 88 dc_ctx->center[0] = center[0]; 89 dc_ctx->center[1] = center[1]; 90 dc_ctx->center[2] = center[2]; 91 dc_ctx->dc_axis[0] = dc_axis[0]; 92 dc_ctx->dc_axis[1] = dc_axis[1]; 93 dc_ctx->dc_axis[2] = dc_axis[2]; 94 95 CeedQFunctionContextGetData(problem->apply_vol_rhs.qfunction_context, CEED_MEM_HOST, &newtonian_ig_ctx); 96 dc_ctx->newtonian_ctx = *newtonian_ig_ctx; 97 CeedQFunctionContextRestoreData(problem->apply_vol_rhs.qfunction_context, &newtonian_ig_ctx); 98 CeedQFunctionContextCreate(user->ceed, &density_current_context); 99 CeedQFunctionContextSetData(density_current_context, CEED_MEM_HOST, CEED_USE_POINTER, sizeof(*dc_ctx), dc_ctx); 100 CeedQFunctionContextSetDataDestroy(density_current_context, CEED_MEM_HOST, FreeContextPetsc); 101 problem->ics.qfunction_context = density_current_context; 102 103 PetscFunctionReturn(0); 104 } 105