Autoignition in Turbulent Flows

Name: Autoignition in Turbulent Flows
Brand: VDM Verlag Dr. Mueller E.K.
SKU: 9783836494342
Price: 75.74 EUR
Availability: InStock

Experimental Observations and Investigation of the Effects of Turbulence and Mixture Inhomogeneities

Autor: Christos Markides

Jazyk:

Väzba: Brožovaná

Vydavateľ: VDM Verlag Dr. Mueller E.K.

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In this work gaseous fuels were released continuously and concentrically into confined annular co-fl...

Informácie o knihe

Autor

Christos Markides

Jazyk

Angličtina

Väzba

Kniha - Brožovaná

Vydalo

2008

Stránok

376

EAN

9783836494342

ISBN

3836494345

Enbook ID

07005758

Vydavateľ

VDM Verlag Dr. Mueller E.K.

Hmotnosť

503

Rozmery

152 x 229 x 20

Kompletný popis

In this work gaseous fuels were released continuously and concentrically into confined annular co-flows of turbulent hot air. Following injection the fuel and air mixed and at some length downstream of the nozzle the reactive mixture autoignited. Original phenomena are reported of autoignition spots, unsteady flame propagation and extinction or flashback. The frequency of the spots was measured, as were their acoustic and chemiluminescence characteristics. Optical measurements of the autoignition locations were made and used to estimate mean delay times from injection. As would be expected by considerations of simple chemical kinetics and the mean concentration field, higher air temperatures and lower fuel velocities resulted in autoignition closer to the injector. However, as the air velocity and hence also turbulent fluctuations were increased, autoignition shifted downstream and was delayed, while its frequency and sound intensity decreased. Such and other situations are presented that cannot be explained purely in terms of chemical arguments, i.e. homogeneous delay times, highlighting the significance of the mixing field through the mixture fraction and scalar dissipation rate.

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Autoignition in Turbulent Flows

Experimental Observations and Investigation of the Effects of Turbulence and Mixture Inhomogeneities

Informácie o knihe

Kompletný popis

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Zákazníci, ktorí si kúpili túto knihu, kúpili tiež