Question

FROMM scheme ____________

(a) gives weighted importance to the upwind and downwind schemes

(b) gives equal importance to upwind and downwind scheme

(c) is downwind biased

(d) is upwind biased

I had been asked this question during an online exam.

My question comes from Convection-Diffusion Problems in chapter Convection-Diffusion Problems of Computational Fluid Dynamics

Answer 1

Right answer is (d) is upwind biased

For explanation I would say: The FROMM scheme is upwind biased. It gives more importance to the upwind nodes than the downwind nodes. IT uses two upwind nodes and one downwind node (totally three nodes).