OOF2: The Manual
2nd order Runge-Kutta (RK2) — Second order Runge-Kutta time stepping.
RK2 is a TimeStepper that implements the second
order Runge-Kutta method for solving ordinary differential
equations. The error on each step is of order .
RK2 is also referred to as the
Given a vector of unknowns
Field values in OOF2) at
and the first order differential equation
the second order Runge-Kutta estimate for is given by
RK2 can be applied to second order equations
by using equation (6.141).