ME200 - Lecture 17

ME200 - Lecture 17 - 10/3/2010 NozzlesandDiffusers ME200...

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10/3/2010 1 Nozzles and Diffusers ME 200 Thermodynamics I Purdue University , Dr. Tim Pourpoint – [email protected] Lecture 17 October 4 th , 2010 Last Lecture •F i r s t Law of Thermodynamics–Open Systems •Ra te form 2 . 2 2 i ii i inlets eC V ee e V QW mh g z Vd E gz     ME 200 2 2 exits dt
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10/3/2010 2 • Applications of First Law of Thermodynamics – Nozzles – Diffusers Today: 1st Today: 1st Law Law Applications Applications Typical Control Volumes ME 200 3 •A nozzle is a device that increases the velocity of a fluid at the expense of pressure –The cross sectional area of a nozzle decreases in the flow direction for subsonic flows and increases for supersonic flow Nozzles and Diffusers direction for subsonic flows and increases for supersonic flows diffuser is a device that increases the pressure of a fluid by slowing it down sectional area of a diffuser increases in the flow direction for subsonic flows and decreases for supersonic flows ME 200 4 •Con ce rned with subsonic flows in this class –Wha t about a converging diverging nozzle?
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10/3/2010 3
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This note was uploaded on 12/11/2011 for the course ME 200 taught by Professor Gal during the Fall '08 term at Purdue.

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ME200 - Lecture 17 - 10/3/2010 NozzlesandDiffusers ME200...

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