9. Dissipation & The Viscous Fluid

This is the last lecture of the Kinetic Theory study circle. As we saw in the previous lecture, the ideal fluid misses dissipation (and therefore equilibrium). In this lecture I investigate how to include dissipation (through relaxation time approximation) and treat thermal conductivity and viscosity according to it. Finally, I’d derive the so-called Navier-Stokes equations governing the motion of viscous fluid.