Question

The aspect ratio of each element should be ___________

(a) less than one

(b) equal to one

(c) around one

(d) greater than one

This question was addressed to me in an interview for internship.

I'm obligated to ask this question of Numerical Methods in chapter Numerical Methods of Computational Fluid Dynamics

Answer 1

Correct choice is (c) around one

To explain I would say: Ideally, the aspect ratio of each element should be equal to 1. But, this cannot be practically ensured. So, in real, the elements have their aspect ratio around 1. If it is large, it will lead to errors.