DynamicKinematicPressure.hpp

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// Copyright © 2020-2024 Alexandre Coderre-Chabot
//
// This file is part of Physical Quantities (PhQ), a C++ library of physical quantities, physical
// models, and units of measure for scientific computing.
//
// Physical Quantities is hosted at:
//     https://github.com/acodcha/phq
//
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#ifndef PHQ_DYNAMIC_KINEMATIC_PRESSURE_HPP
#define PHQ_DYNAMIC_KINEMATIC_PRESSURE_HPP
 
#include <cmath>
#include <cstddef>
#include <functional>
#include <ostream>
 
#include "DimensionalScalar.hpp"
#include "DynamicPressure.hpp"
#include "MassDensity.hpp"
#include "Speed.hpp"
#include "StaticKinematicPressure.hpp"
#include "Unit/SpecificEnergy.hpp"
 
namespace PhQ {
 
/// \brief Dynamic kinematic pressure, which is dynamic pressure divided by mass density; see
/// PhQ::DynamicPressure and PhQ::MassDensity.
template <typename NumericType = double>
class DynamicKinematicPressure : public DimensionalScalar<Unit::SpecificEnergy, NumericType> {
public:
  /// \brief Default constructor. Constructs a dynamic kinematic pressure with an uninitialized
  /// value.
  DynamicKinematicPressure() = default;
 
  /// \brief Constructor. Constructs a dynamic kinematic pressure with a given value expressed in a
  /// given specific energy unit.
  DynamicKinematicPressure(const NumericType value, const Unit::SpecificEnergy unit)
    : DimensionalScalar<Unit::SpecificEnergy, NumericType>(value, unit) {}
 
  /// \brief Constructor. Constructs a dynamic kinematic pressure from a given speed using the
  /// definition of dynamic kinematic pressure.
  explicit constexpr DynamicKinematicPressure(const Speed<NumericType>& speed)
    : DynamicKinematicPressure<NumericType>(0.5 * std::pow(speed.Value(), 2)) {}
 
  /// \brief Constructor. Constructs a dynamic kinematic pressure from a given total kinematic
  /// pressure and static kinematic pressure using the definition of total kinematic pressure.
  constexpr DynamicKinematicPressure(
      const TotalKinematicPressure<NumericType>& total_kinematic_pressure,
      const StaticKinematicPressure<NumericType>& static_kinematic_pressure);
 
  /// \brief Constructor. Constructs a dynamic kinematic pressure from a given dynamic pressure and
  /// mass density using the definition of dynamic kinematic pressure.
  constexpr DynamicKinematicPressure(const DynamicPressure<NumericType>& dynamic_pressure,
                                     const MassDensity<NumericType>& mass_density)
    : DynamicKinematicPressure<NumericType>(dynamic_pressure.Value() / mass_density.Value()) {}
 
  /// \brief Destructor. Destroys this dynamic kinematic pressure.
  ~DynamicKinematicPressure() noexcept = default;
 
  /// \brief Copy constructor. Constructs a dynamic kinematic pressure by copying another one.
  constexpr DynamicKinematicPressure(const DynamicKinematicPressure<NumericType>& other) = default;
 
  /// \brief Copy constructor. Constructs a dynamic kinematic pressure by copying another one.
  template <typename OtherNumericType>
  explicit constexpr DynamicKinematicPressure(
      const DynamicKinematicPressure<OtherNumericType>& other)
    : DynamicKinematicPressure(static_cast<NumericType>(other.Value())) {}
 
  /// \brief Move constructor. Constructs a dynamic kinematic pressure by moving another one.
  constexpr DynamicKinematicPressure(
      DynamicKinematicPressure<NumericType>&& other) noexcept = default;
 
  /// \brief Copy assignment operator. Assigns this dynamic kinematic pressure by copying another
  /// one.
  constexpr DynamicKinematicPressure<NumericType>& operator=(
      const DynamicKinematicPressure<NumericType>& other) = default;
 
  /// \brief Copy assignment operator. Assigns this dynamic kinematic pressure by copying another
  /// one.
  template <typename OtherNumericType>
  constexpr DynamicKinematicPressure<NumericType>& operator=(
      const DynamicKinematicPressure<OtherNumericType>& other) {
    this->value = static_cast<NumericType>(other.Value());
    return *this;
  }
 
  /// \brief Move assignment operator. Assigns this dynamic kinematic pressure by moving another
  /// one.
  constexpr DynamicKinematicPressure<NumericType>& operator=(
      DynamicKinematicPressure<NumericType>&& other) noexcept = default;
 
  /// \brief Statically creates a dynamic kinematic pressure of zero.
  [[nodiscard]] static constexpr DynamicKinematicPressure<NumericType> Zero() {
    return DynamicKinematicPressure<NumericType>{static_cast<NumericType>(0)};
  }
 
  /// \brief Statically creates a dynamic kinematic pressure with a given value expressed in a given
  /// specific energy unit.
  template <Unit::SpecificEnergy Unit>
  [[nodiscard]] static constexpr DynamicKinematicPressure<NumericType> Create(
      const NumericType value) {
    return DynamicKinematicPressure<NumericType>{
        ConvertStatically<Unit::SpecificEnergy, Unit, Standard<Unit::SpecificEnergy>>(value)};
  }
 
  constexpr DynamicKinematicPressure<NumericType> operator+(
      const DynamicKinematicPressure<NumericType>& dynamic_kinematic_pressure) const {
    return DynamicKinematicPressure<NumericType>{this->value + dynamic_kinematic_pressure.value};
  }
 
  constexpr TotalKinematicPressure<NumericType> operator+(
      const StaticKinematicPressure<NumericType>& static_kinematic_pressure) const;
 
  constexpr DynamicKinematicPressure<NumericType> operator-(
      const DynamicKinematicPressure<NumericType>& dynamic_kinematic_pressure) const {
    return DynamicKinematicPressure<NumericType>{this->value - dynamic_kinematic_pressure.value};
  }
 
  constexpr DynamicKinematicPressure<NumericType> operator*(const NumericType number) const {
    return DynamicKinematicPressure<NumericType>{this->value * number};
  }
 
  constexpr DynamicKinematicPressure<NumericType> operator/(const NumericType number) const {
    return DynamicKinematicPressure<NumericType>{this->value / number};
  }
 
  constexpr NumericType operator/(
      const DynamicKinematicPressure<NumericType>& dynamic_kinematic_pressure) const noexcept {
    return this->value / dynamic_kinematic_pressure.value;
  }
 
  constexpr void operator+=(
      const DynamicKinematicPressure<NumericType>& dynamic_kinematic_pressure) noexcept {
    this->value += dynamic_kinematic_pressure.value;
  }
 
  constexpr void operator-=(
      const DynamicKinematicPressure<NumericType>& dynamic_kinematic_pressure) noexcept {
    this->value -= dynamic_kinematic_pressure.value;
  }
 
  constexpr void operator*=(const NumericType number) noexcept {
    this->value *= number;
  }
 
  constexpr void operator/=(const NumericType number) noexcept {
    this->value /= number;
  }
 
private:
  /// \brief Constructor. Constructs a dynamic kinematic pressure with a given value expressed in
  /// the standard specific energy unit.
  explicit constexpr DynamicKinematicPressure(const NumericType value)
    : DimensionalScalar<Unit::SpecificEnergy, NumericType>(value) {}
};
 
template <typename NumericType>
inline constexpr bool operator==(const DynamicKinematicPressure<NumericType>& left,
                                 const DynamicKinematicPressure<NumericType>& right) noexcept {
  return left.Value() == right.Value();
}
 
template <typename NumericType>
inline constexpr bool operator!=(const DynamicKinematicPressure<NumericType>& left,
                                 const DynamicKinematicPressure<NumericType>& right) noexcept {
  return left.Value() != right.Value();
}
 
template <typename NumericType>
inline constexpr bool operator<(const DynamicKinematicPressure<NumericType>& left,
                                const DynamicKinematicPressure<NumericType>& right) noexcept {
  return left.Value() < right.Value();
}
 
template <typename NumericType>
inline constexpr bool operator>(const DynamicKinematicPressure<NumericType>& left,
                                const DynamicKinematicPressure<NumericType>& right) noexcept {
  return left.Value() > right.Value();
}
 
template <typename NumericType>
inline constexpr bool operator<=(const DynamicKinematicPressure<NumericType>& left,
                                 const DynamicKinematicPressure<NumericType>& right) noexcept {
  return left.Value() <= right.Value();
}
 
template <typename NumericType>
inline constexpr bool operator>=(const DynamicKinematicPressure<NumericType>& left,
                                 const DynamicKinematicPressure<NumericType>& right) noexcept {
  return left.Value() >= right.Value();
}
 
template <typename NumericType>
inline std::ostream& operator<<(
    std::ostream& stream, const DynamicKinematicPressure<NumericType>& dynamic_kinematic_pressure) {
  stream << dynamic_kinematic_pressure.Print();
  return stream;
}
 
template <typename NumericType>
inline constexpr DynamicKinematicPressure<NumericType> operator*(
    const NumericType number,
    const DynamicKinematicPressure<NumericType>& dynamic_kinematic_pressure) {
  return dynamic_kinematic_pressure * number;
}
 
template <typename NumericType>
inline Speed<NumericType>::Speed(
    const DynamicKinematicPressure<NumericType>& dynamic_kinematic_pressure)
  : Speed<NumericType>(std::sqrt(2.0 * dynamic_kinematic_pressure.Value())) {}
 
template <typename NumericType>
inline constexpr DynamicPressure<NumericType>::DynamicPressure(
    const MassDensity<NumericType>& mass_density,
    const DynamicKinematicPressure<NumericType>& dynamic_kinematic_pressure)
  : DynamicPressure<NumericType>(mass_density.Value() * dynamic_kinematic_pressure.Value()) {}
 
template <typename NumericType>
inline constexpr DynamicKinematicPressure<NumericType> DynamicPressure<NumericType>::operator/(
    const MassDensity<NumericType>& mass_density) const {
  return DynamicKinematicPressure<NumericType>{*this, mass_density};
}
 
}  // namespace PhQ
 
namespace std {
 
template <typename NumericType>
struct hash<PhQ::DynamicKinematicPressure<NumericType>> {
  inline size_t operator()(
      const PhQ::DynamicKinematicPressure<NumericType>& dynamic_kinematic_pressure) const {
    return hash<NumericType>()(dynamic_kinematic_pressure.Value());
  }
};
 
}  // namespace std
 
#endif  // PHQ_DYNAMIC_KINEMATIC_PRESSURE_HPP