Question

If the domain and equations are not discretized, which of these will become true?

(a) Numerical solution cannot be obtained

(b) Analytical solution cannot be obtained

(c) Initial conditions cannot be applied

(d) Mathematical model cannot be obtained

I had been asked this question by my school teacher while I was bunking the class.

The above asked question is from Discretization in chapter Basic Aspects of Discretization, Grid Generation with Appropriate Transformation of Computational Fluid Dynamics

Answer 1

Correct option is (a) Numerical solution cannot be obtained

Best explanation: Discretization process is done to make the equations suitable for numerical solution. If not discretized, numerical methods could not be applied.