Viscous Flow Questions & Answers  




This is a good question. The conservative form is not necessary to solve most viscous flow problems in this course, so I prefer to derive only the nonconservative form. In other courses (like Intro to CFD for instance), then we need the conservative form because it's easier to discretize.




I fixed the mistakes, thank you for pointing these out. It must have been quite late when I wrote this. As for Assign. 4, let's look into this again when we get there. Don't go too fast ;)




Expand the terms $\partial \rho v/\partial t$ as $\rho \partial v/\partial t+...$ and $\partial \rho v^2/\partial y$ as $ \rho v \partial v/\partial y+...$ and so on. Then regroup terms so that the mass conservation equation appears and set those terms to zero.




Hm, I don't understand perfectly. Are you referring to the sign of $\tau$? Then please rewrite your question below and make this more clear.



$\pi$ 