LaminarNonpremixedFlames2Lect22ME525SP2011

# LaminarNonpremixedFlames2Lect22ME525SP2011 - ME 525:...

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School of Mechanical Engineering, Purdue University ME 525: Combustion Lecture 22: Laminar Nonpremixed Flames II – Burke Schumann Analysis 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 31, 2011

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School of Mechanical Engineering, Purdue University Lecture Topics • Flame heights for laminar and turbulent nonpremixed flames. • Burke-Schumann analysis of laminar nonpremixed flames. • Roper flame height analysis.
School of Mechanical Engineering, Purdue University Laminar and Turbulent Flame Lengths Flame length as a function of Reynolds number for both laminar and turbulent cases (Kuo, 2005)

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School of Mechanical Engineering, Purdue University Laminar and Turbulent Flame Lengths Flame length as a function of Reynolds number for both laminar and turbulent cases (Kuo, 2005)
School of Mechanical Engineering, Purdue University Burke-Schumann Diffusion Flame Analysis Additional assumptions: 1. Velocities of fuel and oxidizer streams are equal 2. Zero radial velocity everywhere: implies that v x = constant = ref v x,ref everywhere 3. Buoyancy neglected 4. D = constant = ref D ref (actually proportional to T 1/2 ) 5.  11 vv xr r f r f rx rr   

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School of Mechanical Engineering, Purdue University Burke-Schumann Diffusion Flame Analysis Kuo, 2005
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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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LaminarNonpremixedFlames2Lect22ME525SP2011 - ME 525:...

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