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Autoignition in Turbulent Flows (Paperback) Loot Price: R1,979
Discovery Miles 19 790
Autoignition in Turbulent Flows (Paperback): Christos Markides

Autoignition in Turbulent Flows (Paperback)

Christos Markides

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Loot Price R1,979 Discovery Miles 19 790 | Repayment Terms: R185 pm x 12*

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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.

General

Imprint: VDM Verlag Dr. Mueller E.K.
Country of origin: Germany
Release date: May 2008
First published: May 2008
Authors: Christos Markides
Dimensions: 229 x 152 x 20mm (L x W x T)
Format: Paperback - Trade
Pages: 376
ISBN-13: 978-3-8364-9434-2
Categories: Books > Professional & Technical > Technology: general issues > General
LSN: 3-8364-9434-5
Barcode: 9783836494342

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