Numerical study of the development and angular speed of a small-scale fire whirl

A.C.Y. Yuen; G.H. Yeoh; S.C.P. Cheung; Q.N. Chan; T.B.Y. Chen; W. Yang; H. Lu

doi:10.1016/j.jocs.2018.04.021

Numerical study of the development and angular speed of a small-scale fire whirl

A.C.Y. Yuen^*, G.H. Yeoh, S.C.P. Cheung, Q.N. Chan, T.B.Y. Chen, W. Yang, H. Lu

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

32 Citations (Scopus)

Abstract

The development stages of a small-scale fire whirl including the ignition, flame-rising and fully-developed whirling were successfully captured by a fire field model. Good agreements between simulation and experimental results for vertical temperature profiles and flame height were achieved. With the consideration of the interaction between the liquid and gas phases of the fuel, the radiation heat feedback towards the liquid fuel was aptly predicted. Angular velocities that govern the rotational motion of the fire whirl were evaluated based on computed data. Furthermore, the circulate motion and buoyancy force promoting the extension of flame height were characterised in numerical simulations. © 2018 Elsevier B.V.

Original language	English
Pages (from-to)	21-34
Journal	Journal of Computational Science
Volume	27
DOIs	https://doi.org/10.1016/j.jocs.2018.04.021
Publication status	Published - 1 Jul 2018
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

Combustion
Fire whirl
Flame height
Large eddy simulation
Liquid fuel
Radiation

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abstract = "The development stages of a small-scale fire whirl including the ignition, flame-rising and fully-developed whirling were successfully captured by a fire field model. Good agreements between simulation and experimental results for vertical temperature profiles and flame height were achieved. With the consideration of the interaction between the liquid and gas phases of the fuel, the radiation heat feedback towards the liquid fuel was aptly predicted. Angular velocities that govern the rotational motion of the fire whirl were evaluated based on computed data. Furthermore, the circulate motion and buoyancy force promoting the extension of flame height were characterised in numerical simulations. {\textcopyright} 2018 Elsevier B.V.",

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AU - Yuen, A.C.Y.

AU - Yeoh, G.H.

AU - Cheung, S.C.P.

AU - Chan, Q.N.

AU - Chen, T.B.Y.

AU - Yang, W.

AU - Lu, H.

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

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N2 - The development stages of a small-scale fire whirl including the ignition, flame-rising and fully-developed whirling were successfully captured by a fire field model. Good agreements between simulation and experimental results for vertical temperature profiles and flame height were achieved. With the consideration of the interaction between the liquid and gas phases of the fuel, the radiation heat feedback towards the liquid fuel was aptly predicted. Angular velocities that govern the rotational motion of the fire whirl were evaluated based on computed data. Furthermore, the circulate motion and buoyancy force promoting the extension of flame height were characterised in numerical simulations. © 2018 Elsevier B.V.

AB - The development stages of a small-scale fire whirl including the ignition, flame-rising and fully-developed whirling were successfully captured by a fire field model. Good agreements between simulation and experimental results for vertical temperature profiles and flame height were achieved. With the consideration of the interaction between the liquid and gas phases of the fuel, the radiation heat feedback towards the liquid fuel was aptly predicted. Angular velocities that govern the rotational motion of the fire whirl were evaluated based on computed data. Furthermore, the circulate motion and buoyancy force promoting the extension of flame height were characterised in numerical simulations. © 2018 Elsevier B.V.

KW - Combustion

KW - Fire whirl

KW - Flame height

KW - Large eddy simulation

KW - Liquid fuel

KW - Radiation

UR - http://www.scopus.com/inward/record.url?scp=85046814716&partnerID=8YFLogxK

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DO - 10.1016/j.jocs.2018.04.021

M3 - RGC 21 - Publication in refereed journal

SN - 1877-7503

VL - 27

SP - 21

EP - 34

JO - Journal of Computational Science

JF - Journal of Computational Science

ER -

Numerical study of the development and angular speed of a small-scale fire whirl

Abstract

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Research Keywords

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