Tempus_StepperNewmarkImplicitDForm_decl.hpp

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// @HEADER
// ****************************************************************************
//                Tempus: Copyright (2017) Sandia Corporation
//
// Distributed under BSD 3-clause license (See accompanying file Copyright.txt)
// ****************************************************************************
// @HEADER

#ifndef Tempus_StepperNewmarkImplicitDForm_decl_hpp
#define Tempus_StepperNewmarkImplicitDForm_decl_hpp

#include "Tempus_config.hpp"
#include "Tempus_StepperImplicit.hpp"
#include "Tempus_WrapperModelEvaluatorSecondOrder.hpp"
#include "Tempus_StepperNewmarkImplicitDFormAppAction.hpp"

namespace Tempus {

template <class Scalar>
class StepperNewmarkImplicitDForm
  : virtual public Tempus::StepperImplicit<Scalar> {
 public:
  StepperNewmarkImplicitDForm();

  StepperNewmarkImplicitDForm(
      const Teuchos::RCP<const Thyra::ModelEvaluator<Scalar>>& appModel,
      const Teuchos::RCP<Thyra::NonlinearSolverBase<Scalar>>& solver,
      bool useFSAL, std::string ICConsistency, bool ICConsistencyCheck,
      bool zeroInitialGuess, std::string schemeName, Scalar beta, Scalar gamma,
      const Teuchos::RCP<StepperNewmarkImplicitDFormAppAction<Scalar>>&
          stepperAppAction);


  virtual void setModel(
      const Teuchos::RCP<const Thyra::ModelEvaluator<Scalar>>& appModel);

  virtual Teuchos::RCP<StepperNewmarkImplicitDFormAppAction<Scalar>>
  getAppAction() const
  {
    return stepperNewmarkImpAppAction_;
  }

  virtual void setAppAction(
      Teuchos::RCP<StepperNewmarkImplicitDFormAppAction<Scalar>> appAction);

  virtual void setInitialConditions(
      const Teuchos::RCP<SolutionHistory<Scalar>>& /* solutionHistory */)
  {
  }

  virtual void takeStep(
      const Teuchos::RCP<SolutionHistory<Scalar>>& solutionHistory);

  virtual Teuchos::RCP<Tempus::StepperState<Scalar>> getDefaultStepperState();
  virtual Scalar getOrder() const
  {
    if (gamma_ == 0.5)
      return 2.0;
    else
      return 1.0;
  }
  virtual Scalar getOrderMin() const { return 1.0; }
  virtual Scalar getOrderMax() const { return 2.0; }
  virtual bool isExplicit() const { return false; }
  virtual bool isImplicit() const { return true; }
  virtual bool isExplicitImplicit() const
  {
    return isExplicit() && isImplicit();
  }
  virtual bool isOneStepMethod() const { return true; }
  virtual bool isMultiStepMethod() const { return !isOneStepMethod(); }
  virtual OrderODE getOrderODE() const { return SECOND_ORDER_ODE; }

  virtual Scalar getW_xDotDot_coeff(const Scalar dt) const
  {
    return Scalar(1.0) / (beta_ * dt * dt);
  }
  virtual Scalar getAlpha(const Scalar dt) const
  {
    return gamma_ / (beta_ * dt);
  }
  virtual Scalar getBeta(const Scalar) const { return Scalar(1.0); }

  Teuchos::RCP<const Teuchos::ParameterList> getValidParameters() const;


  virtual void describe(Teuchos::FancyOStream& out,
                        const Teuchos::EVerbosityLevel verbLevel) const;

  virtual bool isValidSetup(Teuchos::FancyOStream& out) const;

  void predictVelocity(Thyra::VectorBase<Scalar>& vPred,
                       const Thyra::VectorBase<Scalar>& v,
                       const Thyra::VectorBase<Scalar>& a,
                       const Scalar dt) const;

  void predictDisplacement(Thyra::VectorBase<Scalar>& dPred,
                           const Thyra::VectorBase<Scalar>& d,
                           const Thyra::VectorBase<Scalar>& v,
                           const Thyra::VectorBase<Scalar>& a,
                           const Scalar dt) const;

  void correctVelocity(Thyra::VectorBase<Scalar>& v,
                       const Thyra::VectorBase<Scalar>& vPred,
                       const Thyra::VectorBase<Scalar>& a,
                       const Scalar dt) const;

  void correctDisplacement(Thyra::VectorBase<Scalar>& d,
                           const Thyra::VectorBase<Scalar>& dPred,
                           const Thyra::VectorBase<Scalar>& a,
                           const Scalar dt) const;

  void correctAcceleration(Thyra::VectorBase<Scalar>& a,
                           const Thyra::VectorBase<Scalar>& dPred,
                           const Thyra::VectorBase<Scalar>& d,
                           const Scalar dt) const;

  void setSchemeName(std::string schemeName);
  void setBeta(Scalar beta);
  void setGamma(Scalar gamma);

 protected:
  std::string schemeName_;
  Scalar beta_;
  Scalar gamma_;

  Teuchos::RCP<Teuchos::FancyOStream> out_;
  Teuchos::RCP<StepperNewmarkImplicitDFormAppAction<Scalar>>
      stepperNewmarkImpAppAction_;
};

// ------------------------------------------------------------------------
template <class Scalar>
Teuchos::RCP<StepperNewmarkImplicitDForm<Scalar>>
createStepperNewmarkImplicitDForm(
    const Teuchos::RCP<const Thyra::ModelEvaluator<Scalar>>& model,
    Teuchos::RCP<Teuchos::ParameterList> pl);

}  // namespace Tempus

#endif  // Tempus_StepperNewmarkImplicitDForm_decl_hpp