- I`ve just taken ground water modelling course..so probably my qns
will sound very basic types to you people.
Qn::When we solve for the unknowns(concentrations at different nodes
after a particular time) using upstream spatial weighing with crank
nicholson(theta=0.5) for different sized meshes(coarse, fine, medium)
and by using central spatial weighing with crank nicolson or fully
What will be the impact of upstream versus central spatial weighing
on numerical dispersion as the grid size is refined.
Can this be defined numerically by using peclet number and courant
Can anyone please explain it with physical aspect as well as
qn2::What will be the impact of crank nichoson temporal weighting
(theta=0.5) and fully implicit temporal weighting(theta =1)on
numerical dispersion as the time step is refined.??????
time step being refined means..courant number c=q*delta(t)/deta(x)
will also become less thus monotonous.