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Laminar flame speed is a property of the mixture (fuel structure, stoichiometry) and thermodynamic conditions upon mixture ignition (pressure, temperature). Turbulent flame speed is a function of the aforementioned parameters, but also heavily depends on the flow field. As flow velocity increases and
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in the flame zone. As a result, the flame front of a turbulent flame will propagate at a speed that is not only a function of the mixture's chemical and transport properties but also properties of the flow and turbulence.
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274:{\displaystyle s_{\mathrm {L} }^{\circ }={\sqrt {\alpha {\dot {\omega }}\left({\dfrac {T_{\mathrm {b} }-T_{\mathrm {i} }}{T_{\mathrm {i} }-T_{\mathrm {u} }}}\right)}}}
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is introduced, a flame will begin to wrinkle, then corrugate and eventually the flame front will be broken and transport properties will be enhanced by turbulent
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flame will propagate through a quiescent mixture of unburned reactants. Laminar flame speed is given the symbol
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is an intrinsic characteristic of premixed combustible mixtures. It is the speed at which an un-stretched
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of the mixture and the temperature through the flame zone:
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16:Property of a combustible mixture
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385:Activation energy asymptotics
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295:{\displaystyle \alpha }
137:Ernest-François Mallard
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405:"Laminar Flame Speed"
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58:"Laminar flame speed"
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147:of the mixture, the
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122:Laminar flame speed
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412:. Retrieved
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141:Le Chatelier
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36:verification
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375:Flame speed
436:Combustion
391:References
358:turbulence
99:April 2024
69:newspapers
414:April 15,
322:˙
319:ω
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430:Category
369:See also
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362:eddies
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