xref: /libCEED/examples/fluids/problems/advection.c (revision 49aac155e7a09736f56fb3abac0f57dab29f7cbf)

// Copyright (c) 2017-2022, 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 ADVECTION

#include "../qfunctions/advection.h"

#include <ceed.h>
#include <petscdm.h>

#include "../navierstokes.h"
#include "../qfunctions/setupgeo.h"

PetscErrorCode NS_ADVECTION(ProblemData *problem, DM dm, void *ctx, SimpleBC bc) {
  WindType             wind_type;
  BubbleType           bubble_type;
  BubbleContinuityType bubble_continuity_type;
  StabilizationType    stab;
  SetupContextAdv      setup_context;
  User                 user = *(User *)ctx;
  MPI_Comm             comm = PETSC_COMM_WORLD;
  PetscBool            implicit;
  PetscBool            has_curr_time = PETSC_FALSE;
  AdvectionContext     advection_ctx;
  CeedQFunctionContext advection_context;

  PetscFunctionBeginUser;
  PetscCall(PetscCalloc1(1, &setup_context));
  PetscCall(PetscCalloc1(1, &advection_ctx));

  // ------------------------------------------------------
  //               SET UP ADVECTION
  // ------------------------------------------------------
  problem->dim                               = 3;
  problem->q_data_size_vol                   = 10;
  problem->q_data_size_sur                   = 10;
  problem->setup_vol.qfunction               = Setup;
  problem->setup_vol.qfunction_loc           = Setup_loc;
  problem->setup_sur.qfunction               = SetupBoundary;
  problem->setup_sur.qfunction_loc           = SetupBoundary_loc;
  problem->ics.qfunction                     = ICsAdvection;
  problem->ics.qfunction_loc                 = ICsAdvection_loc;
  problem->apply_vol_rhs.qfunction           = Advection;
  problem->apply_vol_rhs.qfunction_loc       = Advection_loc;
  problem->apply_vol_ifunction.qfunction     = IFunction_Advection;
  problem->apply_vol_ifunction.qfunction_loc = IFunction_Advection_loc;
  problem->apply_inflow.qfunction            = Advection_InOutFlow;
  problem->apply_inflow.qfunction_loc        = Advection_InOutFlow_loc;
  problem->bc                                = Exact_Advection;
  problem->bc_ctx                            = setup_context;
  problem->non_zero_time                     = PETSC_FALSE;
  problem->print_info                        = PRINT_ADVECTION;

  // ------------------------------------------------------
  //             Create the libCEED context
  // ------------------------------------------------------
  CeedScalar rc          = 1000.;       // m (Radius of bubble)
  CeedScalar CtauS       = 0.;          // dimensionless
  CeedScalar strong_form = 0.;          // [0,1]
  CeedScalar E_wind      = 1.e6;        // J
  PetscReal  wind[3]     = {1., 0, 0};  // m/s
  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];

  // ------------------------------------------------------
  //             Create the PETSc context
  // ------------------------------------------------------
  PetscScalar meter    = 1e-2;  // 1 meter in scaled length units
  PetscScalar kilogram = 1e-6;  // 1 kilogram in scaled mass units
  PetscScalar second   = 1e-2;  // 1 second in scaled time units
  PetscScalar Joule;

  // ------------------------------------------------------
  //              Command line Options
  // ------------------------------------------------------
  PetscOptionsBegin(comm, NULL, "Options for ADVECTION problem", NULL);
  // -- Physics
  PetscCall(PetscOptionsScalar("-rc", "Characteristic radius of thermal bubble", NULL, rc, &rc, NULL));
  PetscBool translation;
  PetscCall(PetscOptionsEnum("-wind_type", "Wind type in Advection", NULL, WindTypes, (PetscEnum)(wind_type = WIND_ROTATION), (PetscEnum *)&wind_type,
                             &translation));
  if (translation) user->phys->has_neumann = PETSC_TRUE;
  PetscInt  n = problem->dim;
  PetscBool user_wind;
  PetscCall(PetscOptionsRealArray("-wind_translation", "Constant wind vector", NULL, wind, &n, &user_wind));
  PetscCall(PetscOptionsScalar("-CtauS", "Scale coefficient for tau (nondimensional)", NULL, CtauS, &CtauS, NULL));
  PetscCall(
      PetscOptionsScalar("-strong_form", "Strong (1) or weak/integrated by parts (0) advection residual", NULL, strong_form, &strong_form, NULL));
  PetscCall(PetscOptionsScalar("-E_wind", "Total energy of inflow wind", NULL, E_wind, &E_wind, NULL));
  PetscCall(PetscOptionsEnum("-bubble_type", "Sphere (3D) or cylinder (2D)", NULL, BubbleTypes, (PetscEnum)(bubble_type = BUBBLE_SPHERE),
                             (PetscEnum *)&bubble_type, NULL));
  PetscCall(PetscOptionsEnum("-bubble_continuity", "Smooth, back_sharp, or thick", NULL, BubbleContinuityTypes,
                             (PetscEnum)(bubble_continuity_type = BUBBLE_CONTINUITY_SMOOTH), (PetscEnum *)&bubble_continuity_type, NULL));
  PetscCall(PetscOptionsEnum("-stab", "Stabilization method", NULL, StabilizationTypes, (PetscEnum)(stab = STAB_NONE), (PetscEnum *)&stab, NULL));
  PetscCall(PetscOptionsBool("-implicit", "Use implicit (IFunction) formulation", NULL, implicit = PETSC_FALSE, &implicit, 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);

  // -- Warnings
  if (wind_type == WIND_ROTATION && user_wind) {
    PetscCall(PetscPrintf(comm, "Warning! Use -wind_translation only with -wind_type translation\n"));
  }
  if (wind_type == WIND_TRANSLATION && bubble_type == BUBBLE_CYLINDER && wind[2] != 0.) {
    wind[2] = 0;
    PetscCall(PetscPrintf(comm, "Warning! Background wind in the z direction should be zero (-wind_translation x,x,0) with -bubble_type cylinder\n"));
  }
  if (stab == STAB_NONE && CtauS != 0) {
    PetscCall(PetscPrintf(comm, "Warning! Use -CtauS only with -stab su or -stab supg\n"));
  }
  if (stab == STAB_SUPG && !implicit) {
    PetscCall(PetscPrintf(comm, "Warning! Use -stab supg only with -implicit\n"));
  }

  PetscOptionsEnd();

  // ------------------------------------------------------
  //           Set up the PETSc context
  // ------------------------------------------------------
  // -- Define derived units
  Joule = kilogram * PetscSqr(meter) / PetscSqr(second);

  user->units->meter    = meter;
  user->units->kilogram = kilogram;
  user->units->second   = second;
  user->units->Joule    = Joule;

  // ------------------------------------------------------
  //           Set up the libCEED context
  // ------------------------------------------------------
  // -- Scale variables to desired units
  E_wind *= Joule;
  rc = fabs(rc) * meter;
  for (PetscInt i = 0; i < 3; i++) {
    wind[i] *= (meter / second);
    domain_size[i] *= meter;
  }
  problem->dm_scale = meter;

  // -- Setup Context
  setup_context->rc                     = rc;
  setup_context->lx                     = domain_size[0];
  setup_context->ly                     = domain_size[1];
  setup_context->lz                     = domain_size[2];
  setup_context->wind[0]                = wind[0];
  setup_context->wind[1]                = wind[1];
  setup_context->wind[2]                = wind[2];
  setup_context->wind_type              = wind_type;
  setup_context->bubble_type            = bubble_type;
  setup_context->bubble_continuity_type = bubble_continuity_type;
  setup_context->time                   = 0;

  // -- QFunction Context
  user->phys->stab                   = stab;
  user->phys->wind_type              = wind_type;
  user->phys->bubble_type            = bubble_type;
  user->phys->bubble_continuity_type = bubble_continuity_type;
  //  if passed correctly
  user->phys->implicit         = implicit;
  user->phys->has_curr_time    = has_curr_time;
  advection_ctx->CtauS         = CtauS;
  advection_ctx->E_wind        = E_wind;
  advection_ctx->implicit      = implicit;
  advection_ctx->strong_form   = strong_form;
  advection_ctx->stabilization = stab;

  CeedQFunctionContextCreate(user->ceed, &problem->ics.qfunction_context);
  CeedQFunctionContextSetData(problem->ics.qfunction_context, CEED_MEM_HOST, CEED_USE_POINTER, sizeof(*setup_context), setup_context);
  CeedQFunctionContextSetDataDestroy(problem->ics.qfunction_context, CEED_MEM_HOST, FreeContextPetsc);

  CeedQFunctionContextCreate(user->ceed, &advection_context);
  CeedQFunctionContextSetData(advection_context, CEED_MEM_HOST, CEED_USE_POINTER, sizeof(*advection_ctx), advection_ctx);
  CeedQFunctionContextSetDataDestroy(advection_context, CEED_MEM_HOST, FreeContextPetsc);
  problem->apply_vol_rhs.qfunction_context = advection_context;
  CeedQFunctionContextReferenceCopy(advection_context, &problem->apply_vol_ifunction.qfunction_context);
  CeedQFunctionContextReferenceCopy(advection_context, &problem->apply_inflow.qfunction_context);
  PetscFunctionReturn(0);
}

PetscErrorCode PRINT_ADVECTION(ProblemData *problem, AppCtx app_ctx) {
  MPI_Comm         comm = PETSC_COMM_WORLD;
  SetupContextAdv  setup_ctx;
  AdvectionContext advection_ctx;

  PetscFunctionBeginUser;
  CeedQFunctionContextGetData(problem->ics.qfunction_context, CEED_MEM_HOST, &setup_ctx);
  CeedQFunctionContextGetData(problem->apply_vol_rhs.qfunction_context, CEED_MEM_HOST, &advection_ctx);
  PetscCall(PetscPrintf(comm,
                        "  Problem:\n"
                        "    Problem Name                       : %s\n"
                        "    Stabilization                      : %s\n"
                        "    Bubble Type                        : %s (%" CeedInt_FMT "D)\n"
                        "    Bubble Continuity                  : %s\n"
                        "    Wind Type                          : %s\n",
                        app_ctx->problem_name, StabilizationTypes[advection_ctx->stabilization], BubbleTypes[setup_ctx->bubble_type],
                        setup_ctx->bubble_type == BUBBLE_SPHERE ? 3 : 2, BubbleContinuityTypes[setup_ctx->bubble_continuity_type],
                        WindTypes[setup_ctx->wind_type]));

  if (setup_ctx->wind_type == WIND_TRANSLATION) {
    PetscCall(PetscPrintf(comm, "    Background Wind                    : %f,%f,%f\n", setup_ctx->wind[0], setup_ctx->wind[1], setup_ctx->wind[2]));
  }
  CeedQFunctionContextRestoreData(problem->ics.qfunction_context, &setup_ctx);
  CeedQFunctionContextRestoreData(problem->apply_vol_rhs.qfunction_context, &advection_ctx);
  PetscFunctionReturn(0);
}