An immersed-boundary method for the dynamics of premixed flames

K. L. Pan; W. Shyy; C. K. Law

doi:10.1016/S0017-9310(02)00075-3

An immersed-boundary method for the dynamics of premixed flames

K. L. Pan, W. Shyy, C. K. Law

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23 Scopus citations

Abstract

The accuracy of the immersed-boundary method is investigated for the simulation of the propagation of a premixed flame, characterized by sharp and moving interfaces separating unburned and burned gases with disparate fluid properties. In particular, the spurious pressure fields observed when employing the cosine weighting function in previous studies are found to be caused by the non-conservation in the interfacial region, and are removed in the present study by using area weighting. Furthermore, the sensitivity of the front propagation velocity to the movement and location of the flame, characterized by a discontinuous velocity profile, is substantially moderated by the use of an improved technique based on known immersion distribution. The improved performance of the present method is demonstrated through the evolution of the Darrieus-Landau instability.

Original language	English (US)
Pages (from-to)	3503-3516
Number of pages	14
Journal	International Journal of Heat and Mass Transfer
Volume	45
Issue number	17
DOIs	https://doi.org/10.1016/S0017-9310(02)00075-3
State	Published - Jun 10 2002
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanical Engineering
Fluid Flow and Transfer Processes

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10.1016/S0017-9310(02)00075-3

Cite this

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title = "An immersed-boundary method for the dynamics of premixed flames",

abstract = "The accuracy of the immersed-boundary method is investigated for the simulation of the propagation of a premixed flame, characterized by sharp and moving interfaces separating unburned and burned gases with disparate fluid properties. In particular, the spurious pressure fields observed when employing the cosine weighting function in previous studies are found to be caused by the non-conservation in the interfacial region, and are removed in the present study by using area weighting. Furthermore, the sensitivity of the front propagation velocity to the movement and location of the flame, characterized by a discontinuous velocity profile, is substantially moderated by the use of an improved technique based on known immersion distribution. The improved performance of the present method is demonstrated through the evolution of the Darrieus-Landau instability.",

author = "Pan, {K. L.} and W. Shyy and Law, {C. K.}",

note = "Funding Information: C.K. Law's and W. Shyy's efforts have been supported by AFOSR and Eglin AFB, respectively.",

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AU - Pan, K. L.

AU - Shyy, W.

AU - Law, C. K.

N1 - Funding Information: C.K. Law's and W. Shyy's efforts have been supported by AFOSR and Eglin AFB, respectively.

PY - 2002/6/10

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N2 - The accuracy of the immersed-boundary method is investigated for the simulation of the propagation of a premixed flame, characterized by sharp and moving interfaces separating unburned and burned gases with disparate fluid properties. In particular, the spurious pressure fields observed when employing the cosine weighting function in previous studies are found to be caused by the non-conservation in the interfacial region, and are removed in the present study by using area weighting. Furthermore, the sensitivity of the front propagation velocity to the movement and location of the flame, characterized by a discontinuous velocity profile, is substantially moderated by the use of an improved technique based on known immersion distribution. The improved performance of the present method is demonstrated through the evolution of the Darrieus-Landau instability.

AB - The accuracy of the immersed-boundary method is investigated for the simulation of the propagation of a premixed flame, characterized by sharp and moving interfaces separating unburned and burned gases with disparate fluid properties. In particular, the spurious pressure fields observed when employing the cosine weighting function in previous studies are found to be caused by the non-conservation in the interfacial region, and are removed in the present study by using area weighting. Furthermore, the sensitivity of the front propagation velocity to the movement and location of the flame, characterized by a discontinuous velocity profile, is substantially moderated by the use of an improved technique based on known immersion distribution. The improved performance of the present method is demonstrated through the evolution of the Darrieus-Landau instability.

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JO - International Journal of Heat and Mass Transfer

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An immersed-boundary method for the dynamics of premixed flames

Abstract

All Science Journal Classification (ASJC) codes

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