# Description of Turbulence - Lesson 3

In order to call a fluid flow as turbulent, there are certain traits that the flow needs to exhibit. One of which is diffusivity, which is visible in the contrails shown in the video below. This nature of the turbulent flow results in increased levels of momentum and heat transfer.

In this lesson, you will learn in detail about not just diffusivity, but all the other characteristics of turbulent flows.

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