[Libmesh-users] getting u and u_dot from transient solver

[Manav B. <bha...@gm...>]

Hi, 

   I am attempting to implement my SUPG solver for Euler equations within libMesh via the FEMSystem API. A couple of questions: 

--  I am assuming that when elem_time_derivative is called, elem_solution in the FEMContext stores the u. Similarly, when the mass_residual is called, elem_solution stores the u_dot and elem_fixed_solution stores the u. Is that correct? 

-- How do I get the element u_dot vector when elem_time_derivative is called? 

    I would appreciate any help. 

Thanks,
Manav