Question

For a high-resolution scheme to have good convergence, the profile in the NVD frame should __________

(a) involve sharp angles

(b) avoid sharp angles

(c) be smooth

(d) be differentiable

This question was posed to me in an online interview.

I want to ask this question from High-Resolution Schemes topic in section High Resolution Schemes of Computational Fluid Dynamics

Answer 1

The correct answer is (b) avoid sharp angles

Explanation: A high-resolution scheme can have composite nature of profiles in the NVD frame which involves cut. But, at these cuts, the angle should not be sharp for the schemes to have better convergence.