amrex::RungeKutta::detail Namespace Reference

Functions
template<typename MF >
void	rk_update (MF &Unew, MF const &Uold, MF const &dUdt, Real dt)
	Unew = Uold + dUdt * dt. More...
template<typename MF >
void	rk_update (MF &Unew, MF const &Uold, MF const &dUdt1, MF const &dUdt2, Real dt)
	Unew = Uold + (dUdt1 + dUdt2) * dt. More...
template<typename MF >
void	rk2_update_2 (MF &Unew, MF const &Uold, MF const &dUdt, Real dt)
	Unew = (Uold+Unew)/2 + dUdt * dt/2. More...
template<typename MF >
void	rk3_update_3 (MF &Unew, MF const &Uold, Array< MF, 3 > const &rkk, Real dt6)
	Unew = Uold + (k1 + k2 + 4*k3) * dt6, where dt6 = dt/6. More...
template<typename MF >
void	rk4_update_4 (MF &Unew, MF const &Uold, Array< MF, 4 > const &rkk, Real dt6)
	Unew = Uold + (k1+k4+2*(k2+k3))*dt6, where dt6 = dt/6. More...

Function Documentation

rk2_update_2()

template<typename MF >

void amrex::RungeKutta::detail::rk2_update_2	(	MF &	Unew,
		MF const &	Uold,
		MF const &	dUdt,
		Real	dt
	)

Unew = (Uold+Unew)/2 + dUdt * dt/2.

rk3_update_3()

template<typename MF >

void amrex::RungeKutta::detail::rk3_update_3	(	MF &	Unew,
		MF const &	Uold,
		Array< MF, 3 > const &	rkk,
		Real	dt6
	)

Unew = Uold + (k1 + k2 + 4*k3) * dt6, where dt6 = dt/6.

rk4_update_4()

template<typename MF >

void amrex::RungeKutta::detail::rk4_update_4	(	MF &	Unew,
		MF const &	Uold,
		Array< MF, 4 > const &	rkk,
		Real	dt6
	)

Unew = Uold + (k1+k4+2*(k2+k3))*dt6, where dt6 = dt/6.

rk_update() [1/2]

template<typename MF >

void amrex::RungeKutta::detail::rk_update	(	MF &	Unew,
		MF const &	Uold,
		MF const &	dUdt,
		Real	dt
	)

Unew = Uold + dUdt * dt.

rk_update() [2/2]

template<typename MF >

void amrex::RungeKutta::detail::rk_update	(	MF &	Unew,
		MF const &	Uold,
		MF const &	dUdt1,
		MF const &	dUdt2,
		Real	dt
	)

Unew = Uold + (dUdt1 + dUdt2) * dt.