I am constructing a finite volume model in Dymola which evolves in time and space. The spatial discretization is hard coded in the equations section, the time evolution is implemented with a term consisting of der(phi).
Is the time integration of Dymola always numerically stable when using a variable step size algorithm? If not, can I do something about that?
Is the Euler integration algorithm from Dymola the explicit or implicit Euler method?
The Dymola Euler solver by default is explicit (if an in-line sovler is not selected).