filteredLinear scheme - What is exactly removed by filtering?
 

Hi,

== 1 ==
Eugene de Villiers stated that 'The filtering removes staggering caused by pressure-velocity decoupling':
http://www.cfd-online.com/Forums/ope...tml#post194184

== 2 ==
In my view, filteredLinear removes spurious oscillations caused by pure central differencing scheme for high cell Reynolds number problems.

== 3 ==
To my knowledge, pressure-velocity decoupling in co-located grids causes 'checker-board' pressure field. This is, however, remedied by Runge-Kutta(ish) interpolation in OpenFOAM.

== 4 ==
If so, could you please tell me whether filteredLinear removes oscillations due to central differencing scheme or pressure-velocity decoupling?

Many thanks in advance.