ZNDDetonationAnalysisLect20ME525SP2011

ZNDDetonationAnalysisLect20ME525SP2011 - ME 525: Combustion...

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School of Mechanical Engineering, Purdue University ME 525: Combustion Lecture 20: Detonations: ZND Theory Prof. Robert P. Lucht Room 87, Mechanical Engineering Building School of Mechanical Engineering Purdue University West Lafayette, Indiana Email: [email protected] Phone: 765-494-5623 March 24, 2011 1/14
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School of Mechanical Engineering, Purdue University Lecture Topics • Summary of the Chapman-Jouguet analysis. • Zeldovich - von Neumann - Doring (ZND) analysis of detonation wave structure. • Comparison of CJ theory and experiment for detonation waves. 2/14
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School of Mechanical Engineering, Purdue University Summary of the Chapman-Jouguet Analysis Internal structure of the detonation wave is ignored in C-J analysis. Conservation of mass, conservation of momentum, conservation of energy, and equation of state for the burned gas provide four equations for the five unknowns u 1 , u 2 , r 2 , P 2 , T 2 . • For the detonation wave, analysis of the propagation of the combustion wave gives us the additional condition that M 2 = 1 and restricts the solution to the upper Chapman-Jouguet point.
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This note was uploaded on 12/27/2011 for the course ME 525 taught by Professor Lucth during the Fall '11 term at Purdue.

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ZNDDetonationAnalysisLect20ME525SP2011 - ME 525: Combustion...

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