The area in the western face of a 2-D steady-state diffusion stencil (uniform) is _______________(a) grid size in the x-direction(b) grid size in the y-direction(c) product of the grid sizes in the x and y-directions(d) ratio of the grid sizes in the x and y-directionsThis question was addressed to me in an online interview.Question is taken from FVM for Multi-dimensional Steady State Diffusion in portion Diffusion Problem of Computational Fluid Dynamics

The area in the western face of a 2-D steady-state diffusion stencil (

1.	The area in the western face of a 2-D steady-state diffusion stencil (uniform) is _______________(a) grid size in the x-direction(b) grid size in the y-direction(c) product of the grid sizes in the x and y-directions(d) ratio of the grid sizes in the x and y-directionsThis question was addressed to me in an online interview.Question is taken from FVM for Multi-dimensional Steady State Diffusion in portion Diffusion Problem of Computational Fluid Dynamics
Answer» RIGHT choice is (b) grid SIZE in the y-DIRECTION To elaborate: In the one-dimensional CASE, the area is taken to be unity. In the two-dimensional case, the area is the grid size in the PERPENDICULAR direction multiplied by unity. So, for area Ae=Aw=Δy and An=As=Δx.

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