Tuesday, December 12, 2006

That's a Long Drive

I made it through the Inviscid Final. It wasn't at all what I was expecting. Really, it was half what I was expecting. One problem dealt with the Helmholtz, Kelvin, and Kutta theorems or conditions. I knew that would be there. One problem dealt with flow boundary conditions, and that was to be expected. A third problem was a derivation of the Bernoulli equation for rotational flow. While the end result is the standard everyday Bernoulli equation, it's derivation is far from straight-forward. There are some crazy vector calculus identities that no one ever remembers, then you integrate over a streamline, and everything works. I couldn't do the vector anlysis, so I carried the offending term all the way through the problem until I rewrote it in the integral in the form it needed to be in to get the final answer. That problem was completely hit-or-miss, either you remembered the derivation from the book (which we covered months ago) or you didn't. The last problem was another Helmholtz / Kelvin explanation, but much less clear as to what any type of reasonable answer was. I did get to use my drafting template to draw a circle for that problem. I rambled for a while about vorticity and circulation and other buzz words, and I think I said what needed to be said somewhere in all that. It was a lot like my blog, but for a grade.

After the final, I managed to create a problem for everyone by trying to print my timesheet. It should be fixed, eventually. Lee and I got a quick lunch, then loaded up our respective vehicles and headed to Memphis. It rained on us from about Manchester almost to Nashville, then there was a car on fire on I-24 just south of Nashville, right after it quit raining. We sat at nearly a dead stop for 15 minutes, then traffic cleared and we didn't have any other problems the whole way back. The rain left the sky overcast, and the sun only peeked through to blind us for about 10 minutes total. I made it home in about the normal amount of time, even being stopped on I-24. Food is good.

Tonight has been all about relaxing. You can take that statement as a goal of my entire break. I plan to do as little as possible as much as possible.

Bullwinkle: But here, cleverly disguised as a bomb, is a bomb.

More tomorrow.

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