[Nektar-users] Ununiform and unsteady source terms

Hi All, I am trying to define an ununiform and unsteady source term in CompressibleFlowSolver (nektar 4.3.5). The source term is independant on flow fields ,and can be defined as s(x,y,z, t) = s0(x,y,z)* s1(t) Here, "s0" can be obtain by a numerical model, and "s1" is a simple and discontinuous function. ( "t" is time.) Can anyone please give me some advise of how to set this source term to CompressibleFlowSolver ? Thanking you. Regards, S.Ke