Question

What does the mathematical model of a fluid flow contain?

(a) Partial differential equations

(b) Discretized partial differential equations

(c) Partial differential equations and boundary conditions

(d) Discretized partial differential equations and boundary conditions

I got this question during an interview.

I want to ask this question from Numerical Methods in division Numerical Methods of Computational Fluid Dynamics

Answer 1

Right option is (c) Partial differential equations and boundary conditions

Easy explanation: After generating the mathematical model of the physical flow in a problem, we will have a set of partial differential equations along with its boundary conditions. The mathematical model is not complete without the boundary conditions which make the problem unique.