Question

Which of these is related to the flux terms?

(a) Element connectivity

(b) Node connectivity

(c) Face connectivity

(d) Vertex connectivity

The question was posed to me in a job interview.

My question comes from Numerical Methods in chapter Numerical Methods of Computational Fluid Dynamics

Answer 1

The correct answer is:

(c) Face connectivity

Flux terms in computational fluid dynamics are typically associated with the flow across the faces of the computational elements. In the finite volume method (FVM), for example, the fluxes are computed across the faces of control volumes, making face connectivity essential for determining how quantities like mass, momentum, and energy are transferred between adjacent cells.