Lewis number effect on the flame height of circulation-controlled firewhirls

Dehai Yu; Peng Zhang

Lewis number effect on the flame height of circulation-controlled firewhirls

Dehai Yu, Peng Zhang

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

Abstract

A theoretical analysis was carried out on the circulation-controlled firewhirls, considering multiple physical effects, including the previously investigated variable physical properties and strong vortex, and with emphasis on the effect of non-unity Lewis number. By means of perturbation method, an analytical expression of the flame height, with all effects presented in explicit forms, was derived in the situation of both fuel and of oxidizer Lewis numbers being near unity. In leading order approximation, the non-unity Lewis number effect tends to change the flame height by a factor of Leo/LeF.

Original language	English
Title of host publication	11th Asia-Pacific Conference on Combustion, ASPACC 2017
Publisher	Combustion Institute
Publication status	Published - 1 Jan 2017
Event	11th Asia-Pacific Conference on Combustion, ASPACC 2017 - University of Sydney, Sydney, Australia Duration: 10 Dec 2017 → 14 Dec 2017

Conference

Conference	11th Asia-Pacific Conference on Combustion, ASPACC 2017
Country/Territory	Australia
City	Sydney
Period	10/12/17 → 14/12/17

ASJC Scopus subject areas

Condensed Matter Physics
Energy Engineering and Power Technology
Fuel Technology
General Chemical Engineering

More information

http://hdl.handle.net/10397/104992

Cite this

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title = "Lewis number effect on the flame height of circulation-controlled firewhirls",

abstract = "A theoretical analysis was carried out on the circulation-controlled firewhirls, considering multiple physical effects, including the previously investigated variable physical properties and strong vortex, and with emphasis on the effect of non-unity Lewis number. By means of perturbation method, an analytical expression of the flame height, with all effects presented in explicit forms, was derived in the situation of both fuel and of oxidizer Lewis numbers being near unity. In leading order approximation, the non-unity Lewis number effect tends to change the flame height by a factor of Leo/LeF.",

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AB - A theoretical analysis was carried out on the circulation-controlled firewhirls, considering multiple physical effects, including the previously investigated variable physical properties and strong vortex, and with emphasis on the effect of non-unity Lewis number. By means of perturbation method, an analytical expression of the flame height, with all effects presented in explicit forms, was derived in the situation of both fuel and of oxidizer Lewis numbers being near unity. In leading order approximation, the non-unity Lewis number effect tends to change the flame height by a factor of Leo/LeF.

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M3 - Conference article published in proceeding or book

BT - 11th Asia-Pacific Conference on Combustion, ASPACC 2017

PB - Combustion Institute

T2 - 11th Asia-Pacific Conference on Combustion, ASPACC 2017

Y2 - 10 December 2017 through 14 December 2017

ER -

Lewis number effect on the flame height of circulation-controlled firewhirls

Abstract

Conference

ASJC Scopus subject areas

More information

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