Question

When Richardson number is equal to zero, what is the wind turbulence characteristic?

(a) No vertical mixing

(b) Weak mechanical turbulence due to stratification

(c) Convective mixing is greater than mechanical turbulence

(d) Only mechanical turbulence

This question was addressed to me during a job interview.

This is a very interesting question from Air Pollution in chapter Air Pollution of Environmental Engineering

Answer 1

Right option is (d) Only mechanical turbulence

To explain: When Richardson number is zero, there is mechanical turbulence alone.