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SpECTRE
v2025.08.19
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The various available equations of state. More...
Classes | |
| class | EquationsOfState::Barotropic2D< ColdEos > |
| A 2D equation of state representing a barotropic fluid. More... | |
| class | EquationsOfState::Barotropic3D< ColdEquilEos > |
| A 3D equation of state representing a barotropic fluid. More... | |
| class | EquationsOfState::DarkEnergyFluid< IsRelativistic > |
| Equation of state for a dark energy fluid. More... | |
| class | EquationsOfState::Enthalpy< LowDensityEoS > |
| An equation of state given by parametrized enthalpy. More... | |
| class | EquationsOfState::EquationOfState< IsRelativistic, ThermodynamicDim > |
Base class for equations of state depending on whether or not the system is relativistic, and the number of independent thermodynamic variables (ThermodynamicDim) needed to determine the pressure. More... | |
| class | EquationsOfState::EquationOfState< IsRelativistic, 1 > |
| Base class for equations of state which need one thermodynamic variable in order to determine the pressure. More... | |
| class | EquationsOfState::EquationOfState< IsRelativistic, 2 > |
| Base class for equations of state which need two independent thermodynamic variables in order to determine the pressure. More... | |
| class | EquationsOfState::EquationOfState< IsRelativistic, 3 > |
| Base class for equations of state which need three independent thermodynamic variables in order to determine the pressure. More... | |
| class | EquationsOfState::Equilibrium3D< EquilEos > |
| A 3D equation of state representing a fluid in compositional equalibrium. More... | |
| class | EquationsOfState::HybridEos< ColdEquationOfState > |
| Hybrid equation of state combining a barotropic EOS for cold (zero-temperature) part with a simple thermal part. More... | |
| class | EquationsOfState::IdealFluid< IsRelativistic > |
| Equation of state for an ideal fluid. More... | |
| class | EquationsOfState::PiecewisePolytropicFluid< IsRelativistic > |
| Equation of state for a piecewise polytropic fluid. More... | |
| class | EquationsOfState::PolytropicFluid< IsRelativistic > |
| Equation of state for a polytropic fluid. More... | |
| class | EquationsOfState::Spectral |
| A spectral equation of state. More... | |
| class | EquationsOfState::Tabulated3D< IsRelativistic > |
| Nuclear matter equation of state in tabulated form. More... | |
Macros | |
| #define | EQUATION_OF_STATE_FORWARD_DECLARE_MEMBERS(DERIVED, DIM) |
| Macro used to generate forward declarations of member functions in derived classes. More... | |
| template<typename DataType , size_t ThermodynamicDim> | |
| void | hydro::sound_speed_squared (gsl::not_null< Scalar< DataType > * > result, const Scalar< DataType > &rest_mass_density, const Scalar< DataType > &specific_internal_energy, const Scalar< DataType > &specific_enthalpy, const EquationsOfState::EquationOfState< true, ThermodynamicDim > &equation_of_state) |
| Computes the relativistic sound speed squared. More... | |
| template<typename DataType , size_t ThermodynamicDim> | |
| Scalar< DataType > | hydro::sound_speed_squared (const Scalar< DataType > &rest_mass_density, const Scalar< DataType > &specific_internal_energy, const Scalar< DataType > &specific_enthalpy, const EquationsOfState::EquationOfState< true, ThermodynamicDim > &equation_of_state) |
| Computes the relativistic sound speed squared. More... | |
| template<typename DataType > | |
| void | hydro::relativistic_specific_enthalpy (gsl::not_null< Scalar< DataType > * > result, const Scalar< DataType > &rest_mass_density, const Scalar< DataType > &specific_internal_energy, const Scalar< DataType > &pressure) |
| Computes the relativistic specific enthalpy \(h\) as: \( h = 1 + \epsilon + \frac{p}{\rho} \) where \(\epsilon\) is the specific internal energy, \(p\) is the pressure, and \(\rho\) is the rest mass density. | |
| template<typename DataType > | |
| Scalar< DataType > | hydro::relativistic_specific_enthalpy (const Scalar< DataType > &rest_mass_density, const Scalar< DataType > &specific_internal_energy, const Scalar< DataType > &pressure) |
| Computes the relativistic specific enthalpy \(h\) as: \( h = 1 + \epsilon + \frac{p}{\rho} \) where \(\epsilon\) is the specific internal energy, \(p\) is the pressure, and \(\rho\) is the rest mass density. | |
The various available equations of state.
| #define EQUATION_OF_STATE_FORWARD_DECLARE_MEMBERS | ( | DERIVED, | |
| DIM | |||
| ) |
Macro used to generate forward declarations of member functions in derived classes.
| Scalar< DataType > hydro::sound_speed_squared | ( | const Scalar< DataType > & | rest_mass_density, |
| const Scalar< DataType > & | specific_internal_energy, | ||
| const Scalar< DataType > & | specific_enthalpy, | ||
| const EquationsOfState::EquationOfState< true, ThermodynamicDim > & | equation_of_state | ||
| ) |
Computes the relativistic sound speed squared.
The relativistic sound speed squared is given by \(c_s^2 = \left(\chi + p\kappa / \rho^2\right)/h\), where \(p\) is the fluid pressure, \(\rho\) is the rest mass density, \(h = 1 + \epsilon + p / \rho\) is the specific enthalpy \(\chi = (\partial p/\partial\rho)_\epsilon\) and \(\kappa = (\partial p/ \partial \epsilon)_\rho\), where \(\epsilon\) is the specific internal energy.
| void hydro::sound_speed_squared | ( | gsl::not_null< Scalar< DataType > * > | result, |
| const Scalar< DataType > & | rest_mass_density, | ||
| const Scalar< DataType > & | specific_internal_energy, | ||
| const Scalar< DataType > & | specific_enthalpy, | ||
| const EquationsOfState::EquationOfState< true, ThermodynamicDim > & | equation_of_state | ||
| ) |
Computes the relativistic sound speed squared.
The relativistic sound speed squared is given by \(c_s^2 = \left(\chi + p\kappa / \rho^2\right)/h\), where \(p\) is the fluid pressure, \(\rho\) is the rest mass density, \(h = 1 + \epsilon + p / \rho\) is the specific enthalpy \(\chi = (\partial p/\partial\rho)_\epsilon\) and \(\kappa = (\partial p/ \partial \epsilon)_\rho\), where \(\epsilon\) is the specific internal energy.