// Copyright (c) 2017-2026, Lawrence Livermore National Security, LLC and other CEED contributors. // All Rights Reserved. See the top-level LICENSE and NOTICE files for details. // // SPDX-License-Identifier: BSD-2-Clause // // This file is part of CEED: http://github.com/ceed /// @file /// Utility functions for setting up problems using the Newtonian Qfunction #include "../qfunctions/newtonian.h" #include #include #include "../navierstokes.h" // For use with PetscOptionsEnum static const char *const StateVariables[] = {"CONSERVATIVE", "PRIMITIVE", "ENTROPY", "StateVariable", "STATEVAR_", NULL}; static PetscErrorCode CheckQWithTolerance(const CeedScalar Q_s[5], const CeedScalar Q_a[5], const CeedScalar Q_b[5], const char *name, PetscReal rtol_0, PetscReal rtol_u, PetscReal rtol_4) { CeedScalar relative_error[5]; // relative error CeedScalar divisor_threshold = 10 * CEED_EPSILON; PetscFunctionBeginUser; relative_error[0] = (Q_a[0] - Q_b[0]) / (fabs(Q_s[0]) > divisor_threshold ? Q_s[0] : 1); relative_error[4] = (Q_a[4] - Q_b[4]) / (fabs(Q_s[4]) > divisor_threshold ? Q_s[4] : 1); CeedScalar u_magnitude = sqrt(Square(Q_s[1]) + Square(Q_s[2]) + Square(Q_s[3])); CeedScalar u_divisor = u_magnitude > divisor_threshold ? u_magnitude : 1; for (int i = 1; i < 4; i++) { relative_error[i] = (Q_a[i] - Q_b[i]) / u_divisor; } if (fabs(relative_error[0]) >= rtol_0) { printf("%s[0] error %g (expected %.10e, got %.10e)\n", name, relative_error[0], Q_s[0], Q_a[0]); } for (int i = 1; i < 4; i++) { if (fabs(relative_error[i]) >= rtol_u) { printf("%s[%d] error %g (expected %.10e, got %.10e)\n", name, i, relative_error[i], Q_s[i], Q_a[i]); } } if (fabs(relative_error[4]) >= rtol_4) { printf("%s[4] error %g (expected %.10e, got %.10e)\n", name, relative_error[4], Q_s[4], Q_a[4]); } PetscFunctionReturn(PETSC_SUCCESS); } // @brief Verify `StateFromQ` by converting A0 -> B0 -> A0_test, where A0 should equal A0_test static PetscErrorCode TestState(StateVariable state_var_A, StateVariable state_var_B, NewtonianIdealGasContext gas, const CeedScalar A0[5], CeedScalar rtol_0, CeedScalar rtol_u, CeedScalar rtol_4) { CeedScalar B0[5], A0_test[5]; char buf[128]; const char *const StateVariables_Initial[] = {"U", "Y", "V"}; PetscFunctionBeginUser; const char *A_initial = StateVariables_Initial[state_var_A]; const char *B_initial = StateVariables_Initial[state_var_B]; State state_A0 = StateFromQ(gas, A0, state_var_A); StateToQ(gas, state_A0, B0, state_var_B); State state_B0 = StateFromQ(gas, B0, state_var_B); StateToQ(gas, state_B0, A0_test, state_var_A); snprintf(buf, sizeof buf, "%s->%s->%s: %s", A_initial, B_initial, A_initial, A_initial); PetscCall(CheckQWithTolerance(A0, A0_test, A0, buf, rtol_0, rtol_u, rtol_4)); PetscFunctionReturn(PETSC_SUCCESS); } // @brief Verify `StateFromQ_fwd` via a finite difference approximation static PetscErrorCode TestState_fwd(StateVariable state_var_A, StateVariable state_var_B, NewtonianIdealGasContext gas, const CeedScalar A0[5], CeedScalar rtol_0, CeedScalar rtol_u, CeedScalar rtol_4) { CeedScalar eps = 4e-7; // Finite difference step char buf[128]; const char *const StateVariables_Initial[] = {"U", "Y", "V"}; PetscFunctionBeginUser; const char *A_initial = StateVariables_Initial[state_var_A]; const char *B_initial = StateVariables_Initial[state_var_B]; State state_0 = StateFromQ(gas, A0, state_var_A); for (int i = 0; i < 5; i++) { CeedScalar dB[5] = {0.}, dB_fd[5] = {0.}; { // Calculate dB using State functions CeedScalar dA[5] = {0}; dA[i] = A0[i]; State dstate_0 = StateFromQ_fwd(gas, state_0, dA, state_var_A); StateToQ_fwd(gas, state_0, dstate_0, dB, state_var_B); } { // Calculate dB_fd via finite difference approximation CeedScalar A1[5], B0[5], B1[5]; for (int j = 0; j < 5; j++) A1[j] = (1 + eps * (i == j)) * A0[j]; State state_1 = StateFromQ(gas, A1, state_var_A); StateToQ(gas, state_0, B0, state_var_B); StateToQ(gas, state_1, B1, state_var_B); for (int j = 0; j < 5; j++) dB_fd[j] = (B1[j] - B0[j]) / eps; } snprintf(buf, sizeof buf, "d%s->d%s: StateFrom%s_fwd i=%d: d%s", A_initial, B_initial, A_initial, i, B_initial); PetscCall(CheckQWithTolerance(dB_fd, dB, dB_fd, buf, rtol_0, rtol_u, rtol_4)); } PetscFunctionReturn(PETSC_SUCCESS); } // @brief Test the Newtonian State transformation functions, `StateFrom*` static PetscErrorCode UnitTests_Newtonian(User user, NewtonianIdealGasContext gas) { Units units = user->units; const CeedScalar kg = units->kilogram, m = units->meter, sec = units->second, K = units->Kelvin; PetscFunctionBeginUser; const CeedScalar T = 200 * K; const CeedScalar rho = 1.2 * kg / Cube(m); const CeedScalar P = (HeatCapacityRatio(gas) - 1) * rho * gas->cv * T; const CeedScalar u_base = 40 * m / sec; const CeedScalar u[3] = {u_base, u_base * 1.1, u_base * 1.2}; const CeedScalar e_kinetic = 0.5 * Dot3(u, u); const CeedScalar e_internal = gas->cv * T; const CeedScalar e_total = e_kinetic + e_internal; const CeedScalar gamma = HeatCapacityRatio(gas); const CeedScalar entropy = log(P) - gamma * log(rho); const CeedScalar rho_div_p = rho / P; const CeedScalar Y0[5] = {P, u[0], u[1], u[2], T}; const CeedScalar U0[5] = {rho, rho * u[0], rho * u[1], rho * u[2], rho * e_total}; const CeedScalar V0[5] = {(gamma - entropy) / (gamma - 1) - rho_div_p * (e_kinetic), rho_div_p * u[0], rho_div_p * u[1], rho_div_p * u[2], -rho_div_p}; { CeedScalar rtol = 40 * CEED_EPSILON; PetscCall(TestState(STATEVAR_PRIMITIVE, STATEVAR_CONSERVATIVE, gas, Y0, rtol, rtol, rtol)); PetscCall(TestState(STATEVAR_PRIMITIVE, STATEVAR_ENTROPY, gas, Y0, rtol, rtol, rtol)); PetscCall(TestState(STATEVAR_CONSERVATIVE, STATEVAR_PRIMITIVE, gas, U0, rtol, rtol, rtol)); PetscCall(TestState(STATEVAR_CONSERVATIVE, STATEVAR_ENTROPY, gas, U0, rtol, rtol, rtol)); PetscCall(TestState(STATEVAR_ENTROPY, STATEVAR_CONSERVATIVE, gas, V0, rtol, rtol, rtol)); PetscCall(TestState(STATEVAR_ENTROPY, STATEVAR_PRIMITIVE, gas, V0, rtol, rtol, rtol)); } { CeedScalar rtol = 5e-6; PetscCall(TestState_fwd(STATEVAR_PRIMITIVE, STATEVAR_CONSERVATIVE, gas, Y0, rtol, rtol, rtol)); PetscCall(TestState_fwd(STATEVAR_PRIMITIVE, STATEVAR_ENTROPY, gas, Y0, rtol, rtol, rtol)); PetscCall(TestState_fwd(STATEVAR_CONSERVATIVE, STATEVAR_PRIMITIVE, gas, U0, rtol, rtol, rtol)); PetscCall(TestState_fwd(STATEVAR_CONSERVATIVE, STATEVAR_ENTROPY, gas, U0, 10 * rtol, rtol, rtol)); PetscCall(TestState_fwd(STATEVAR_ENTROPY, STATEVAR_CONSERVATIVE, gas, V0, 5 * rtol, rtol, rtol)); PetscCall(TestState_fwd(STATEVAR_ENTROPY, STATEVAR_PRIMITIVE, gas, V0, 5 * rtol, 5 * rtol, 5 * rtol)); } PetscFunctionReturn(PETSC_SUCCESS); } // @brief Create CeedOperator for stabilized mass KSP for explicit timestepping // // Only used for SUPG stabilization PetscErrorCode CreateKSPMassOperator_NewtonianStabilized(User user, CeedOperator *op_mass) { Ceed ceed = user->ceed; CeedInt num_comp_q, q_data_size; CeedQFunction qf_mass; CeedElemRestriction elem_restr_q, elem_restr_qd_i; CeedBasis basis_q; CeedVector q_data; CeedQFunctionContext qf_ctx = NULL; PetscInt dim = 3; PetscFunctionBeginUser; { // Get restriction and basis from the RHS function CeedOperator *sub_ops; CeedOperatorField field; PetscInt sub_op_index = 0; // will be 0 for the volume op PetscCallCeed(ceed, CeedOperatorCompositeGetSubList(user->op_rhs_ctx->op, &sub_ops)); PetscCallCeed(ceed, CeedOperatorGetFieldByName(sub_ops[sub_op_index], "q", &field)); PetscCallCeed(ceed, CeedOperatorFieldGetData(field, NULL, &elem_restr_q, &basis_q, NULL)); PetscCallCeed(ceed, CeedOperatorGetFieldByName(sub_ops[sub_op_index], "qdata", &field)); PetscCallCeed(ceed, CeedOperatorFieldGetData(field, NULL, &elem_restr_qd_i, NULL, &q_data)); PetscCallCeed(ceed, CeedOperatorGetContext(sub_ops[sub_op_index], &qf_ctx)); } PetscCallCeed(ceed, CeedElemRestrictionGetNumComponents(elem_restr_q, &num_comp_q)); PetscCallCeed(ceed, CeedElemRestrictionGetNumComponents(elem_restr_qd_i, &q_data_size)); PetscCallCeed(ceed, CeedQFunctionCreateInterior(ceed, 1, MassFunction_Newtonian_Conserv, MassFunction_Newtonian_Conserv_loc, &qf_mass)); PetscCallCeed(ceed, CeedQFunctionSetContext(qf_mass, qf_ctx)); PetscCallCeed(ceed, CeedQFunctionSetUserFlopsEstimate(qf_mass, 0)); PetscCallCeed(ceed, CeedQFunctionAddInput(qf_mass, "q_dot", 5, CEED_EVAL_INTERP)); PetscCallCeed(ceed, CeedQFunctionAddInput(qf_mass, "q", 5, CEED_EVAL_INTERP)); PetscCallCeed(ceed, CeedQFunctionAddInput(qf_mass, "qdata", q_data_size, CEED_EVAL_NONE)); PetscCallCeed(ceed, CeedQFunctionAddOutput(qf_mass, "v", 5, CEED_EVAL_INTERP)); PetscCallCeed(ceed, CeedQFunctionAddOutput(qf_mass, "Grad_v", 5 * dim, CEED_EVAL_GRAD)); PetscCallCeed(ceed, CeedOperatorCreate(ceed, qf_mass, NULL, NULL, op_mass)); PetscCallCeed(ceed, CeedOperatorSetField(*op_mass, "q_dot", elem_restr_q, basis_q, CEED_VECTOR_ACTIVE)); PetscCallCeed(ceed, CeedOperatorSetField(*op_mass, "q", elem_restr_q, basis_q, user->q_ceed)); PetscCallCeed(ceed, CeedOperatorSetField(*op_mass, "qdata", elem_restr_qd_i, CEED_BASIS_NONE, q_data)); PetscCallCeed(ceed, CeedOperatorSetField(*op_mass, "v", elem_restr_q, basis_q, CEED_VECTOR_ACTIVE)); PetscCallCeed(ceed, CeedOperatorSetField(*op_mass, "Grad_v", elem_restr_q, basis_q, CEED_VECTOR_ACTIVE)); PetscCallCeed(ceed, CeedVectorDestroy(&q_data)); PetscCallCeed(ceed, CeedElemRestrictionDestroy(&elem_restr_q)); PetscCallCeed(ceed, CeedElemRestrictionDestroy(&elem_restr_qd_i)); PetscCallCeed(ceed, CeedBasisDestroy(&basis_q)); PetscCallCeed(ceed, CeedQFunctionContextDestroy(&qf_ctx)); PetscCallCeed(ceed, CeedQFunctionDestroy(&qf_mass)); PetscFunctionReturn(PETSC_SUCCESS); } PetscErrorCode NS_NEWTONIAN_IG(ProblemData problem, DM dm, void *ctx, SimpleBC bc) { SetupContext setup_context; User user = *(User *)ctx; CeedInt degree = user->app_ctx->degree; StabilizationType stab; StateVariable state_var; MPI_Comm comm = user->comm; Ceed ceed = user->ceed; PetscBool implicit; PetscBool unit_tests; NewtonianIdealGasContext newtonian_ig_ctx; CeedQFunctionContext newtonian_ig_context; PetscFunctionBeginUser; PetscCall(PetscCalloc1(1, &setup_context)); PetscCall(PetscCalloc1(1, &newtonian_ig_ctx)); // ------------------------------------------------------ // Setup Generic Newtonian IG Problem // ------------------------------------------------------ problem->dim = 3; problem->jac_data_size_sur = 11; problem->compute_exact_solution_error = PETSC_FALSE; problem->print_info = PRINT_NEWTONIAN; problem->uses_newtonian = PETSC_TRUE; // ------------------------------------------------------ // Create the libCEED context // ------------------------------------------------------ CeedScalar cv = 717.; // J/(kg K) CeedScalar cp = 1004.; // J/(kg K) CeedScalar g[3] = {0, 0, 0}; // m/s^2 CeedScalar lambda = -2. / 3.; // - CeedScalar mu = 1.8e-5; // Pa s, dynamic viscosity CeedScalar k = 0.02638; // W/(m K) CeedScalar c_tau = 0.5 / degree; // - CeedScalar Ctau_t = 1.0; // - CeedScalar Cv_func[3] = {36, 60, 128}; CeedScalar Ctau_v = Cv_func[(CeedInt)Min(3, degree) - 1]; CeedScalar Ctau_C = 0.25 / degree; CeedScalar Ctau_M = 0.25 / degree; CeedScalar Ctau_E = 0.125; PetscReal domain_min[3], domain_max[3], domain_size[3]; PetscCall(DMGetBoundingBox(dm, domain_min, domain_max)); for (PetscInt i = 0; i < 3; i++) domain_size[i] = domain_max[i] - domain_min[i]; StatePrimitive reference = {.pressure = 1.01e5, .velocity = {0}, .temperature = 288.15}; CeedScalar idl_decay_time = -1, idl_start = 0, idl_length = 0, idl_pressure = reference.pressure; PetscBool idl_enable = PETSC_FALSE; // ------------------------------------------------------ // Create the PETSc context // ------------------------------------------------------ PetscScalar meter = 1; // 1 meter in scaled length units PetscScalar kilogram = 1; // 1 kilogram in scaled mass units PetscScalar second = 1; // 1 second in scaled time units PetscScalar Kelvin = 1; // 1 Kelvin in scaled temperature units PetscScalar W_per_m_K, Pascal, J_per_kg_K, m_per_squared_s; // ------------------------------------------------------ // Command line Options // ------------------------------------------------------ PetscBool given_option = PETSC_FALSE; PetscOptionsBegin(comm, NULL, "Options for Newtonian Ideal Gas based problem", NULL); // -- Conservative vs Primitive variables PetscCall(PetscOptionsEnum("-state_var", "State variables used", NULL, StateVariables, (PetscEnum)(state_var = STATEVAR_CONSERVATIVE), (PetscEnum *)&state_var, NULL)); switch (state_var) { case STATEVAR_CONSERVATIVE: problem->ics.qfunction = ICsNewtonianIG_Conserv; problem->ics.qfunction_loc = ICsNewtonianIG_Conserv_loc; problem->apply_vol_rhs.qfunction = RHSFunction_Newtonian; problem->apply_vol_rhs.qfunction_loc = RHSFunction_Newtonian_loc; problem->apply_vol_ifunction.qfunction = IFunction_Newtonian_Conserv; problem->apply_vol_ifunction.qfunction_loc = IFunction_Newtonian_Conserv_loc; problem->apply_vol_ijacobian.qfunction = IJacobian_Newtonian_Conserv; problem->apply_vol_ijacobian.qfunction_loc = IJacobian_Newtonian_Conserv_loc; problem->apply_inflow.qfunction = BoundaryIntegral_Conserv; problem->apply_inflow.qfunction_loc = BoundaryIntegral_Conserv_loc; problem->apply_inflow_jacobian.qfunction = BoundaryIntegral_Jacobian_Conserv; problem->apply_inflow_jacobian.qfunction_loc = BoundaryIntegral_Jacobian_Conserv_loc; break; case STATEVAR_PRIMITIVE: problem->ics.qfunction = ICsNewtonianIG_Prim; problem->ics.qfunction_loc = ICsNewtonianIG_Prim_loc; problem->apply_vol_ifunction.qfunction = IFunction_Newtonian_Prim; problem->apply_vol_ifunction.qfunction_loc = IFunction_Newtonian_Prim_loc; problem->apply_vol_ijacobian.qfunction = IJacobian_Newtonian_Prim; problem->apply_vol_ijacobian.qfunction_loc = IJacobian_Newtonian_Prim_loc; problem->apply_inflow.qfunction = BoundaryIntegral_Prim; problem->apply_inflow.qfunction_loc = BoundaryIntegral_Prim_loc; problem->apply_inflow_jacobian.qfunction = BoundaryIntegral_Jacobian_Prim; problem->apply_inflow_jacobian.qfunction_loc = BoundaryIntegral_Jacobian_Prim_loc; break; case STATEVAR_ENTROPY: problem->ics.qfunction = ICsNewtonianIG_Entropy; problem->ics.qfunction_loc = ICsNewtonianIG_Entropy_loc; problem->apply_vol_ifunction.qfunction = IFunction_Newtonian_Entropy; problem->apply_vol_ifunction.qfunction_loc = IFunction_Newtonian_Entropy_loc; problem->apply_vol_ijacobian.qfunction = IJacobian_Newtonian_Entropy; problem->apply_vol_ijacobian.qfunction_loc = IJacobian_Newtonian_Entropy_loc; problem->apply_inflow.qfunction = BoundaryIntegral_Entropy; problem->apply_inflow.qfunction_loc = BoundaryIntegral_Entropy_loc; problem->apply_inflow_jacobian.qfunction = BoundaryIntegral_Jacobian_Entropy; problem->apply_inflow_jacobian.qfunction_loc = BoundaryIntegral_Jacobian_Entropy_loc; break; } // -- Physics PetscCall(PetscOptionsScalar("-cv", "Heat capacity at constant volume", NULL, cv, &cv, NULL)); PetscCall(PetscOptionsScalar("-cp", "Heat capacity at constant pressure", NULL, cp, &cp, NULL)); PetscCall(PetscOptionsScalar("-lambda", "Stokes hypothesis second viscosity coefficient", NULL, lambda, &lambda, NULL)); PetscCall(PetscOptionsScalar("-mu", "Shear dynamic viscosity coefficient", NULL, mu, &mu, NULL)); PetscCall(PetscOptionsScalar("-k", "Thermal conductivity", NULL, k, &k, NULL)); PetscInt dim = problem->dim; PetscCall(PetscOptionsDeprecated("-g", "-gravity", "libCEED 0.11.1", NULL)); PetscCall(PetscOptionsRealArray("-gravity", "Gravitational acceleration vector", NULL, g, &dim, &given_option)); if (given_option) PetscCheck(dim == 3, comm, PETSC_ERR_ARG_SIZ, "Gravity vector must be size 3, %" PetscInt_FMT " values given", dim); PetscCall(PetscOptionsEnum("-stab", "Stabilization method", NULL, StabilizationTypes, (PetscEnum)(stab = STAB_NONE), (PetscEnum *)&stab, NULL)); PetscCall(PetscOptionsScalar("-c_tau", "Stabilization constant", NULL, c_tau, &c_tau, NULL)); PetscCall(PetscOptionsScalar("-Ctau_t", "Stabilization time constant", NULL, Ctau_t, &Ctau_t, NULL)); PetscCall(PetscOptionsScalar("-Ctau_v", "Stabilization viscous constant", NULL, Ctau_v, &Ctau_v, NULL)); PetscCall(PetscOptionsScalar("-Ctau_C", "Stabilization continuity constant", NULL, Ctau_C, &Ctau_C, NULL)); PetscCall(PetscOptionsScalar("-Ctau_M", "Stabilization momentum constant", NULL, Ctau_M, &Ctau_M, NULL)); PetscCall(PetscOptionsScalar("-Ctau_E", "Stabilization energy constant", NULL, Ctau_E, &Ctau_E, NULL)); PetscCall(PetscOptionsBool("-implicit", "Use implicit (IFunction) formulation", NULL, implicit = PETSC_FALSE, &implicit, NULL)); PetscCall(PetscOptionsBool("-newtonian_unit_tests", "Run Newtonian unit tests", NULL, unit_tests = PETSC_FALSE, &unit_tests, NULL)); dim = 3; PetscCall(PetscOptionsScalar("-reference_pressure", "Reference/initial pressure", NULL, reference.pressure, &reference.pressure, NULL)); PetscCall(PetscOptionsScalarArray("-reference_velocity", "Reference/initial velocity", NULL, reference.velocity, &dim, NULL)); PetscCall(PetscOptionsScalar("-reference_temperature", "Reference/initial temperature", NULL, reference.temperature, &reference.temperature, NULL)); // -- Units PetscCall(PetscOptionsScalar("-units_meter", "1 meter in scaled length units", NULL, meter, &meter, NULL)); meter = fabs(meter); PetscCall(PetscOptionsScalar("-units_kilogram", "1 kilogram in scaled mass units", NULL, kilogram, &kilogram, NULL)); kilogram = fabs(kilogram); PetscCall(PetscOptionsScalar("-units_second", "1 second in scaled time units", NULL, second, &second, NULL)); second = fabs(second); PetscCall(PetscOptionsScalar("-units_Kelvin", "1 Kelvin in scaled temperature units", NULL, Kelvin, &Kelvin, NULL)); Kelvin = fabs(Kelvin); // -- Warnings PetscCheck(!(state_var == STATEVAR_PRIMITIVE && !implicit), comm, PETSC_ERR_SUP, "RHSFunction is not provided for primitive variables (use -state_var primitive only with -implicit)\n"); PetscCall(PetscOptionsScalar("-idl_decay_time", "Characteristic timescale of the pressure deviance decay. The timestep is good starting point", NULL, idl_decay_time, &idl_decay_time, &idl_enable)); PetscCheck(!(idl_enable && idl_decay_time == 0), comm, PETSC_ERR_SUP, "idl_decay_time may not be equal to zero."); if (idl_decay_time < 0) idl_enable = PETSC_FALSE; PetscCall(PetscOptionsScalar("-idl_start", "Start of IDL in the x direction", NULL, idl_start, &idl_start, NULL)); PetscCall(PetscOptionsScalar("-idl_length", "Length of IDL in the positive x direction", NULL, idl_length, &idl_length, NULL)); idl_pressure = reference.pressure; PetscCall(PetscOptionsScalar("-idl_pressure", "Pressure IDL uses as reference (default is `-reference_pressure`)", NULL, idl_pressure, &idl_pressure, NULL)); PetscOptionsEnd(); if (stab == STAB_SUPG && !implicit) problem->create_mass_operator = CreateKSPMassOperator_NewtonianStabilized; // ------------------------------------------------------ // Set up the PETSc context // ------------------------------------------------------ // -- Define derived units Pascal = kilogram / (meter * PetscSqr(second)); J_per_kg_K = PetscSqr(meter) / (PetscSqr(second) * Kelvin); m_per_squared_s = meter / PetscSqr(second); W_per_m_K = kilogram * meter / (pow(second, 3) * Kelvin); user->units->meter = meter; user->units->kilogram = kilogram; user->units->second = second; user->units->Kelvin = Kelvin; user->units->Pascal = Pascal; user->units->J_per_kg_K = J_per_kg_K; user->units->m_per_squared_s = m_per_squared_s; user->units->W_per_m_K = W_per_m_K; // ------------------------------------------------------ // Set up the libCEED context // ------------------------------------------------------ // -- Scale variables to desired units cv *= J_per_kg_K; cp *= J_per_kg_K; mu *= Pascal * second; k *= W_per_m_K; for (PetscInt i = 0; i < 3; i++) domain_size[i] *= meter; for (PetscInt i = 0; i < 3; i++) g[i] *= m_per_squared_s; reference.pressure *= Pascal; for (PetscInt i = 0; i < 3; i++) reference.velocity[i] *= meter / second; reference.temperature *= Kelvin; problem->dm_scale = meter; // -- Solver Settings user->phys->implicit = implicit; user->phys->state_var = state_var; // -- QFunction Context newtonian_ig_ctx->lambda = lambda; newtonian_ig_ctx->mu = mu; newtonian_ig_ctx->k = k; newtonian_ig_ctx->cv = cv; newtonian_ig_ctx->cp = cp; newtonian_ig_ctx->c_tau = c_tau; newtonian_ig_ctx->Ctau_t = Ctau_t; newtonian_ig_ctx->Ctau_v = Ctau_v; newtonian_ig_ctx->Ctau_C = Ctau_C; newtonian_ig_ctx->Ctau_M = Ctau_M; newtonian_ig_ctx->Ctau_E = Ctau_E; newtonian_ig_ctx->stabilization = stab; newtonian_ig_ctx->is_implicit = implicit; newtonian_ig_ctx->state_var = state_var; newtonian_ig_ctx->idl_enable = idl_enable; newtonian_ig_ctx->idl_amplitude = 1 / (idl_decay_time * second); newtonian_ig_ctx->idl_start = idl_start * meter; newtonian_ig_ctx->idl_length = idl_length * meter; newtonian_ig_ctx->idl_pressure = idl_pressure; PetscCall(PetscArraycpy(newtonian_ig_ctx->g, g, 3)); // -- Setup Context setup_context->reference = reference; setup_context->gas = *newtonian_ig_ctx; setup_context->lx = domain_size[0]; setup_context->ly = domain_size[1]; setup_context->lz = domain_size[2]; setup_context->time = 0; PetscCallCeed(ceed, CeedQFunctionContextCreate(user->ceed, &problem->ics.qfunction_context)); PetscCallCeed(ceed, CeedQFunctionContextSetData(problem->ics.qfunction_context, CEED_MEM_HOST, CEED_USE_POINTER, sizeof(*setup_context), setup_context)); PetscCallCeed(ceed, CeedQFunctionContextSetDataDestroy(problem->ics.qfunction_context, CEED_MEM_HOST, FreeContextPetsc)); PetscCallCeed(ceed, CeedQFunctionContextRegisterDouble(problem->ics.qfunction_context, "evaluation time", offsetof(struct SetupContext_, time), 1, "Time of evaluation")); PetscCallCeed(ceed, CeedQFunctionContextCreate(user->ceed, &newtonian_ig_context)); PetscCallCeed(ceed, CeedQFunctionContextSetData(newtonian_ig_context, CEED_MEM_HOST, CEED_USE_POINTER, sizeof(*newtonian_ig_ctx), newtonian_ig_ctx)); PetscCallCeed(ceed, CeedQFunctionContextSetDataDestroy(newtonian_ig_context, CEED_MEM_HOST, FreeContextPetsc)); PetscCallCeed(ceed, CeedQFunctionContextRegisterDouble(newtonian_ig_context, "timestep size", offsetof(struct NewtonianIdealGasContext_, dt), 1, "Size of timestep, delta t")); PetscCallCeed(ceed, CeedQFunctionContextRegisterDouble(newtonian_ig_context, "ijacobian time shift", offsetof(struct NewtonianIdealGasContext_, ijacobian_time_shift), 1, "Shift for mass matrix in IJacobian")); PetscCallCeed(ceed, CeedQFunctionContextRegisterDouble(newtonian_ig_context, "solution time", offsetof(struct NewtonianIdealGasContext_, time), 1, "Current solution time")); problem->apply_vol_rhs.qfunction_context = newtonian_ig_context; PetscCallCeed(ceed, CeedQFunctionContextReferenceCopy(newtonian_ig_context, &problem->apply_vol_ifunction.qfunction_context)); PetscCallCeed(ceed, CeedQFunctionContextReferenceCopy(newtonian_ig_context, &problem->apply_vol_ijacobian.qfunction_context)); PetscCallCeed(ceed, CeedQFunctionContextReferenceCopy(newtonian_ig_context, &problem->apply_inflow.qfunction_context)); PetscCallCeed(ceed, CeedQFunctionContextReferenceCopy(newtonian_ig_context, &problem->apply_inflow_jacobian.qfunction_context)); if (bc->num_freestream > 0) PetscCall(FreestreamBCSetup(problem, dm, ctx, newtonian_ig_ctx, &reference)); if (bc->num_outflow > 0) PetscCall(OutflowBCSetup(problem, dm, ctx, newtonian_ig_ctx, &reference)); if (bc->num_slip > 0) PetscCall(SlipBCSetup(problem, dm, ctx, newtonian_ig_context)); if (unit_tests) { PetscCall(UnitTests_Newtonian(user, newtonian_ig_ctx)); } PetscFunctionReturn(PETSC_SUCCESS); } PetscErrorCode PRINT_NEWTONIAN(User user, ProblemData problem, AppCtx app_ctx) { MPI_Comm comm = user->comm; Ceed ceed = user->ceed; NewtonianIdealGasContext newtonian_ctx; PetscFunctionBeginUser; PetscCallCeed(ceed, CeedQFunctionContextGetData(problem->apply_vol_rhs.qfunction_context, CEED_MEM_HOST, &newtonian_ctx)); PetscCall(PetscPrintf(comm, " Problem:\n" " Problem Name : %s\n" " Stabilization : %s\n", app_ctx->problem_name, StabilizationTypes[newtonian_ctx->stabilization])); PetscCallCeed(ceed, CeedQFunctionContextRestoreData(problem->apply_vol_rhs.qfunction_context, &newtonian_ctx)); PetscFunctionReturn(PETSC_SUCCESS); }