GfsVariablePoisson defines a new variable which is the solution of a Poisson equation.
The syntax in parameter files is
The variable is the solution of the Poisson equation:
- ∇2v = f
where v is the name of the variable and f is the GfsFunction given as argument.
By default the Poisson equation is solved at every timestep. This can be tuned using the parameters of the parent GfsEvent.
- Numerical viscosity for vorticity/streamfunction formulation
VariablePoisson Psi -Omega