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Adding project - Glasstone#10

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labarba commented May 17, 2015

"All information comes from John D. Andersons book Fundamentals of Aerodynamics." —> It's a bit of a missed opportunity to start your write up with this sentence. Especially right after the heading "Motivation"! (Better to say that in "The Math" section.)

"The backbone of potential flow theory is the principle of superposition." —> Well ... the "backbone" of potential flow theory is, rather, the Laplace equation, which has the property of being linear, in turn resulting in the ability to apply superposition. But of course I'm nitpicking here.

You have two consecutive sentences starting with "This allows," which sounds repetitive.

For 0≤M0.8
... is missing a < operator?

"inner flow"—> you mean here the flow on the lower side of the airfoil, and similarly you are using "outer" for the upper side; this terminology is not standard and could be confusing.

You were quite effective in finding a topic that would require you to study some mathematical derivations, to get in the end something that required little change it the codes developed in the course, and BAM! ... you have an extension to the slightly compressible regime. As I said in class: choosing the topic for the project is part of what I will assess, and this is what I meant: here, you were successful in finding a good topic that required a minimum amount of work on your part to get something out of it, and for that, I applaud you :-)

I missed a final conclusion, saying what you learned from this exercise. At what minimum Mach number do you think that it's necessary to start adding a compressibility correction? (I don't think you mention that.) An interesting comment to add here is that the D'Alembert paradox still applies with the Prandtl-Glauert correction and you have no drag in this theory!

Typos, grammar, etc.

Compressability—> Compressibility (x21)
Irrotaitonal—> Irrotational
Unforunately—> Unfortunately
soley—> solely(?)
assme—> assume

There are a few of instances of un-capitalized "mach" number: just before cell 21, and in the paragraph below that figure. That paragraph also has two sentences ending similarly, with "is quite small," and "is quite low," which sounds repetitive. There is a repeated word: "that that"

"After the Prandtl-Glauert"—> remove "the"

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