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class26_final_review

class26_final_review - ES330 Section 2 Dr Douglas Bohl 239...

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12/7/2007 1 ES330, Section 2 Dr. Douglas Bohl 239 Camp x6683, [email protected] www.clarkson.edu/~dbohl/es330 Images from www.efluids.com In the southwest of the scene is Alejandro Selkirk Island, a squarish island that rises almost vertically 1 mile above the southern pacific. A boundary layer that sandwiches a saturated, unstable layer of clouds between two more stable layers is broken by the island, causing a formation of vortices known as a Karman Vortex Street. A special form of instability is seen in this cloud formation. When two streams are in parallel motion, but there is a velocity difference between them, a shear layer forms. The shear layer is generally unstable, in that a small perturbation, once formed, will continue to grow. The mechanism can be explained by considering the shear layer as a thin sheet, where the velocity changes suddenly.
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2 The Final • 8 questions (they will be shorter questions) – Cut down on needing to get (a) right to do rest of problem! • Cumulative for the semester
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class26_final_review - ES330 Section 2 Dr Douglas Bohl 239...

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