Question

Below what Richardson number does convective mixing start dominating mechanical turbulence?

(a) 0

(b) -0.04

(c) -0.03

(d) -0.1

The question was posed to me in an internship interview.

I would like to ask this question from Air Pollution topic in portion Air Pollution of Environmental Engineering

Answer 1

Correct option is (b) -0.04

The best explanation: Between 0 and -0.03, both mechanical turbulence and convective mixing are present, but mechanical turbulence is greater. Below -0.04, convective mixing starts dominating.