Numerical identification of precessing vortex core in an airblast swirl burner using POD

Alireza Ghasemi Khourinia; J. B.W. Kok

Numerical identification of precessing vortex core in an airblast swirl burner using POD

Alireza Ghasemi Khourinia, J. B.W. Kok

Thermal Engineering

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

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Abstract

Acoustic response and stability of swirl burners operating in lean conditions is of great interest considering the stricter emission regulations. Lean operating modes exhibit a heightened sensitivity to thermoacoustic instability. This paper is aimed at understanding the natural acoustic characteristic of a prefilming Airblast atomizer operating at pressurized conditions. The presence of a helical precessing vortex core and its corresponding frequency as well as the natural fluctuations in the turbulent reactive flow is simulated using a large eddy simulation approach. Proper orthogonal decomposition is used to extract the prominent flow structures and infer their associated time dynamics within the swirl burner. This analysis is performed in absence of any external forcing to the system and can provide some insight into the stable operating modes of the swirl atomizer.

Original language	English
Title of host publication	"Advances in Acoustics, Noise and Vibration - 2021" Proceedings of the 27th International Congress on Sound and Vibration, ICSV 2021
Editors	Eleonora Carletti, Malcolm Crocker, Marek Pawelczyk, Jiri Tuma
Publisher	Silesian University Press
ISBN (Electronic)	9788378807995
Publication status	Published - 2021
Event	27th International Congress on Sound and Vibration, ICSV 2021 - Virtual, Online Duration: 11 Jul 2021 → 16 Jul 2021 Conference number: 27

Conference

Conference	27th International Congress on Sound and Vibration, ICSV 2021
Abbreviated title	ICSV 2021
City	Virtual, Online
Period	11/07/21 → 16/07/21

Keywords

Airblast atomizer
Non-premixed turbulent combustion
Proper orthogonal decomposition
Thermoacoustic instability

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Ghasemi Khourinia, A., & Kok, J. B. W. (2021). Numerical identification of precessing vortex core in an airblast swirl burner using POD. In E. Carletti, M. Crocker, M. Pawelczyk, & J. Tuma (Eds.), "Advances in Acoustics, Noise and Vibration - 2021" Proceedings of the 27th International Congress on Sound and Vibration, ICSV 2021 Article 172047 Silesian University Press.

Ghasemi Khourinia, Alireza ; Kok, J. B.W. / Numerical identification of precessing vortex core in an airblast swirl burner using POD. "Advances in Acoustics, Noise and Vibration - 2021" Proceedings of the 27th International Congress on Sound and Vibration, ICSV 2021. editor / Eleonora Carletti ; Malcolm Crocker ; Marek Pawelczyk ; Jiri Tuma. Silesian University Press, 2021.

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title = "Numerical identification of precessing vortex core in an airblast swirl burner using POD",

abstract = "Acoustic response and stability of swirl burners operating in lean conditions is of great interest considering the stricter emission regulations. Lean operating modes exhibit a heightened sensitivity to thermoacoustic instability. This paper is aimed at understanding the natural acoustic characteristic of a prefilming Airblast atomizer operating at pressurized conditions. The presence of a helical precessing vortex core and its corresponding frequency as well as the natural fluctuations in the turbulent reactive flow is simulated using a large eddy simulation approach. Proper orthogonal decomposition is used to extract the prominent flow structures and infer their associated time dynamics within the swirl burner. This analysis is performed in absence of any external forcing to the system and can provide some insight into the stable operating modes of the swirl atomizer.",

keywords = "Airblast atomizer, Non-premixed turbulent combustion, Proper orthogonal decomposition, Thermoacoustic instability",

author = "{Ghasemi Khourinia}, Alireza and Kok, {J. B.W.}",

note = "Funding Information: This project has received funding from the European Union{\textquoteright}s Horizon 2020 research and innovation programme under the Marie Sk{\l}odowska-Curie grant agreement No. 766264. Funding Information: This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sk?odowska-Curie grant agreement No. 766264. Publisher Copyright: {\textcopyright} {"}Advances in Acoustics, Noise and Vibration - 2021{"} Proceedings of the 27th International Congress on Sound and Vibration, ICSV 2021. All rights reserved.; 27th International Congress on Sound and Vibration, ICSV 2021, ICSV 2021 ; Conference date: 11-07-2021 Through 16-07-2021",

year = "2021",

language = "English",

editor = "Eleonora Carletti and Malcolm Crocker and Marek Pawelczyk and Jiri Tuma",

booktitle = "{"}Advances in Acoustics, Noise and Vibration - 2021{"} Proceedings of the 27th International Congress on Sound and Vibration, ICSV 2021",

publisher = "Silesian University Press",

}

Ghasemi Khourinia, A & Kok, JBW 2021, Numerical identification of precessing vortex core in an airblast swirl burner using POD. in E Carletti, M Crocker, M Pawelczyk & J Tuma (eds), "Advances in Acoustics, Noise and Vibration - 2021" Proceedings of the 27th International Congress on Sound and Vibration, ICSV 2021., 172047, Silesian University Press, 27th International Congress on Sound and Vibration, ICSV 2021, Virtual, Online, 11/07/21.

Numerical identification of precessing vortex core in an airblast swirl burner using POD. / Ghasemi Khourinia, Alireza; Kok, J. B.W.
"Advances in Acoustics, Noise and Vibration - 2021" Proceedings of the 27th International Congress on Sound and Vibration, ICSV 2021. ed. / Eleonora Carletti; Malcolm Crocker; Marek Pawelczyk; Jiri Tuma. Silesian University Press, 2021. 172047.

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

TY - GEN

T1 - Numerical identification of precessing vortex core in an airblast swirl burner using POD

AU - Ghasemi Khourinia, Alireza

AU - Kok, J. B.W.

N1 - Conference code: 27

PY - 2021

Y1 - 2021

N2 - Acoustic response and stability of swirl burners operating in lean conditions is of great interest considering the stricter emission regulations. Lean operating modes exhibit a heightened sensitivity to thermoacoustic instability. This paper is aimed at understanding the natural acoustic characteristic of a prefilming Airblast atomizer operating at pressurized conditions. The presence of a helical precessing vortex core and its corresponding frequency as well as the natural fluctuations in the turbulent reactive flow is simulated using a large eddy simulation approach. Proper orthogonal decomposition is used to extract the prominent flow structures and infer their associated time dynamics within the swirl burner. This analysis is performed in absence of any external forcing to the system and can provide some insight into the stable operating modes of the swirl atomizer.

AB - Acoustic response and stability of swirl burners operating in lean conditions is of great interest considering the stricter emission regulations. Lean operating modes exhibit a heightened sensitivity to thermoacoustic instability. This paper is aimed at understanding the natural acoustic characteristic of a prefilming Airblast atomizer operating at pressurized conditions. The presence of a helical precessing vortex core and its corresponding frequency as well as the natural fluctuations in the turbulent reactive flow is simulated using a large eddy simulation approach. Proper orthogonal decomposition is used to extract the prominent flow structures and infer their associated time dynamics within the swirl burner. This analysis is performed in absence of any external forcing to the system and can provide some insight into the stable operating modes of the swirl atomizer.

KW - Airblast atomizer

KW - Non-premixed turbulent combustion

KW - Proper orthogonal decomposition

KW - Thermoacoustic instability

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M3 - Conference contribution

AN - SCOPUS:85117520580

BT - "Advances in Acoustics, Noise and Vibration - 2021" Proceedings of the 27th International Congress on Sound and Vibration, ICSV 2021

A2 - Carletti, Eleonora

A2 - Crocker, Malcolm

A2 - Pawelczyk, Marek

A2 - Tuma, Jiri

PB - Silesian University Press

T2 - 27th International Congress on Sound and Vibration, ICSV 2021

Y2 - 11 July 2021 through 16 July 2021

ER -

Numerical identification of precessing vortex core in an airblast swirl burner using POD

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Keywords

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