Flame quenching dynamics of high-velocity flames in rectangular cross-section channels

Ariff Magdoom Mahuthannan; Deanna Lacoste; Jason Damazo; Eddie Kwon; William L. Roberts

doi:10.2514/6.2017-0823

Flame quenching dynamics of high-velocity flames in rectangular cross-section channels

Ariff Magdoom Mahuthannan, Deanna Lacoste, Jason Damazo, Eddie Kwon, William L. Roberts

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

5 Scopus citations

Abstract

Understanding flame quenching for different conditions is necessary to develop safety devices like flame arrestors. In practical applications, the speed of a deflagration in the lab-fixed reference frame will be a strong function of the geometry through which the deflagration propagates. This study reports on the effect of the flame speed, at the entrance of a quenching section, on the quenching distance. A 2D rectangular channel joining two main spherical vessels is considered for studying this effect. Two different velocity regimes are investigated and referred to as configurations A, and B. For configuration A, the velocity of the flame is 20 m/s, while it is about 100 m/s for configuration B. Methane-air stoichiometric mixtures at 1 bar and 298 K are used. Simultaneous dynamic pressure measurements along with schlieren imaging are used to analyze the quenching of the flame. Risk assessment of re-ignition is also reported and analyzed.

Original language	English (US)
Title of host publication	AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting
Publisher	American Institute of Aeronautics and Astronautics Inc.
ISBN (Electronic)	9781624104473
DOIs	https://doi.org/10.2514/6.2017-0823
State	Published - 2017
Event	55th AIAA Aerospace Sciences Meeting - Grapevine, United States Duration: Jan 9 2017 → Jan 13 2017

Publication series

Name	AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting

Conference

Conference	55th AIAA Aerospace Sciences Meeting
Country/Territory	United States
City	Grapevine
Period	01/9/17 → 01/13/17

Bibliographical note

Publisher Copyright:
© 2017 by the American Institute of Aeronautics and Astronautics, Inc.

ASJC Scopus subject areas

Aerospace Engineering

Access to Document

10.2514/6.2017-0823

Cite this

Mahuthannan, A. M., Lacoste, D., Damazo, J., Kwon, E., & Roberts, W. L. (2017). Flame quenching dynamics of high-velocity flames in rectangular cross-section channels. In AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting Article AIAA 2017-0823 (AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting). American Institute of Aeronautics and Astronautics Inc.. https://doi.org/10.2514/6.2017-0823

@inproceedings{e102088009d2445ab4d282c79894f22f,

title = "Flame quenching dynamics of high-velocity flames in rectangular cross-section channels",

abstract = "Understanding flame quenching for different conditions is necessary to develop safety devices like flame arrestors. In practical applications, the speed of a deflagration in the lab-fixed reference frame will be a strong function of the geometry through which the deflagration propagates. This study reports on the effect of the flame speed, at the entrance of a quenching section, on the quenching distance. A 2D rectangular channel joining two main spherical vessels is considered for studying this effect. Two different velocity regimes are investigated and referred to as configurations A, and B. For configuration A, the velocity of the flame is 20 m/s, while it is about 100 m/s for configuration B. Methane-air stoichiometric mixtures at 1 bar and 298 K are used. Simultaneous dynamic pressure measurements along with schlieren imaging are used to analyze the quenching of the flame. Risk assessment of re-ignition is also reported and analyzed.",

author = "Mahuthannan, {Ariff Magdoom} and Deanna Lacoste and Jason Damazo and Eddie Kwon and Roberts, {William L.}",

note = "Publisher Copyright: {\textcopyright} 2017 by the American Institute of Aeronautics and Astronautics, Inc.; 55th AIAA Aerospace Sciences Meeting ; Conference date: 09-01-2017 Through 13-01-2017",

year = "2017",

doi = "10.2514/6.2017-0823",

language = "English (US)",

series = "AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting",

publisher = "American Institute of Aeronautics and Astronautics Inc.",

booktitle = "AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting",

}

Mahuthannan, AM, Lacoste, D, Damazo, J, Kwon, E & Roberts, WL 2017, Flame quenching dynamics of high-velocity flames in rectangular cross-section channels. in AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting., AIAA 2017-0823, AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting, American Institute of Aeronautics and Astronautics Inc., 55th AIAA Aerospace Sciences Meeting, Grapevine, United States, 01/9/17. https://doi.org/10.2514/6.2017-0823

Flame quenching dynamics of high-velocity flames in rectangular cross-section channels. / Mahuthannan, Ariff Magdoom; Lacoste, Deanna; Damazo, Jason et al.
AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting. American Institute of Aeronautics and Astronautics Inc., 2017. AIAA 2017-0823 (AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Flame quenching dynamics of high-velocity flames in rectangular cross-section channels

AU - Mahuthannan, Ariff Magdoom

AU - Lacoste, Deanna

AU - Damazo, Jason

AU - Kwon, Eddie

AU - Roberts, William L.

PY - 2017

Y1 - 2017

N2 - Understanding flame quenching for different conditions is necessary to develop safety devices like flame arrestors. In practical applications, the speed of a deflagration in the lab-fixed reference frame will be a strong function of the geometry through which the deflagration propagates. This study reports on the effect of the flame speed, at the entrance of a quenching section, on the quenching distance. A 2D rectangular channel joining two main spherical vessels is considered for studying this effect. Two different velocity regimes are investigated and referred to as configurations A, and B. For configuration A, the velocity of the flame is 20 m/s, while it is about 100 m/s for configuration B. Methane-air stoichiometric mixtures at 1 bar and 298 K are used. Simultaneous dynamic pressure measurements along with schlieren imaging are used to analyze the quenching of the flame. Risk assessment of re-ignition is also reported and analyzed.

AB - Understanding flame quenching for different conditions is necessary to develop safety devices like flame arrestors. In practical applications, the speed of a deflagration in the lab-fixed reference frame will be a strong function of the geometry through which the deflagration propagates. This study reports on the effect of the flame speed, at the entrance of a quenching section, on the quenching distance. A 2D rectangular channel joining two main spherical vessels is considered for studying this effect. Two different velocity regimes are investigated and referred to as configurations A, and B. For configuration A, the velocity of the flame is 20 m/s, while it is about 100 m/s for configuration B. Methane-air stoichiometric mixtures at 1 bar and 298 K are used. Simultaneous dynamic pressure measurements along with schlieren imaging are used to analyze the quenching of the flame. Risk assessment of re-ignition is also reported and analyzed.

UR - http://www.scopus.com/inward/record.url?scp=85017198239&partnerID=8YFLogxK

U2 - 10.2514/6.2017-0823

DO - 10.2514/6.2017-0823

M3 - Conference contribution

AN - SCOPUS:85017198239

T3 - AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting

BT - AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting

PB - American Institute of Aeronautics and Astronautics Inc.

T2 - 55th AIAA Aerospace Sciences Meeting

Y2 - 9 January 2017 through 13 January 2017

ER -

Mahuthannan AM, Lacoste D, Damazo J, Kwon E, Roberts WL. Flame quenching dynamics of high-velocity flames in rectangular cross-section channels. In AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting. American Institute of Aeronautics and Astronautics Inc. 2017. AIAA 2017-0823. (AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting). doi: 10.2514/6.2017-0823

Flame quenching dynamics of high-velocity flames in rectangular cross-section channels

Abstract

Publication series

Conference

Bibliographical note

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this