Lecture 17: Taylor-Aris Dispersion (Part 1, Introduction)

In this lecture, we discuss Taylor-Aris dispersion of a passive scalar in a steady flow with velocity gradients. Based on dimensional analysis, we discuss the Peclet number regimes where axial diffusion, convection, and radial diffusion is important.

[@JeffsPesos]

Thank you very much for the lecture - pen & paper lectures are the best as there is no PowerPoint which overhauls student's thinking.

[@bahgalabiitdelhi7797]

Thank you your appreciation.

[@rikvanhaaften1059]

This was very usefull. Thank you!

[@siamakagah7434]

very clear! Thanks

[@Eors]

clear explanation, but why concentration gradient is expressed by "D*△C/L^2"? why not "D*△C/L"?

[@unomasuno4]

Because he is comparing the terms in the Navier-Stokes equation, where there is a second derivative, so the important quantity is D*△C/L^2. If he were using Fick's equation, then it would make sense to use D*△C/L.

[@pd18-A]

Thank You Sir

[@MzumOritz]

great work!

[@bahgalabiitdelhi7797]

Thank you!