Scaling of a small scale burner fire whirl

K. A. Hartl; A. J. Smits

doi:10.1016/j.combustflame.2015.09.027

Scaling of a small scale burner fire whirl

K. A. Hartl, A. J. Smits

Mechanical & Aerospace Engineering

Research output: Contribution to journal › Article › peer-review

50 Scopus citations

Abstract

The behavior of a fire whirl generated using a burner is examined using Particle Image Velocimetry. Swirl is generated using two staggered cylinder halves that surround the burner. The unsteadiness of the whirl is characterized, and the ensemble-averaged mean velocity profiles are obtained based on the instantaneous whirl position. The non-dimensional circulation and whirl height, and the Froude number based on the centerline velocity and height above the burner, are shown to follow simple scaling laws. In particular, we show that the non-dimensional whirl height depends only on the non-dimensional circulation.

Original language	English (US)
Pages (from-to)	202-208
Number of pages	7
Journal	Combustion and Flame
Volume	163
DOIs	https://doi.org/10.1016/j.combustflame.2015.09.027
State	Published - Jan 1 2016

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)
Fuel Technology
Energy Engineering and Power Technology
Physics and Astronomy(all)

Keywords

Circulation
Fire whirl
Froude number
Scaling behavior
Stereo particle image velocimetry
Velocity profiles

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10.1016/j.combustflame.2015.09.027

Cite this

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title = "Scaling of a small scale burner fire whirl",

abstract = "The behavior of a fire whirl generated using a burner is examined using Particle Image Velocimetry. Swirl is generated using two staggered cylinder halves that surround the burner. The unsteadiness of the whirl is characterized, and the ensemble-averaged mean velocity profiles are obtained based on the instantaneous whirl position. The non-dimensional circulation and whirl height, and the Froude number based on the centerline velocity and height above the burner, are shown to follow simple scaling laws. In particular, we show that the non-dimensional whirl height depends only on the non-dimensional circulation.",

keywords = "Circulation, Fire whirl, Froude number, Scaling behavior, Stereo particle image velocimetry, Velocity profiles",

author = "Hartl, {K. A.} and Smits, {A. J.}",

note = "Funding Information: The assistance of Mr. Timothy Bennett in helping with the design and construction of the experimental setup used in this study is greatly appreciated. The assistance of Dr. Tyler Van Buren in preparing Fig. 1 is greatly appreciated. Part of this work was supported by Princeton University {\textquoteright}s Andlinger Center for Energy and the Environment. Publisher Copyright: {\textcopyright} 2015 The Combustion Institute. Copyright: Copyright 2015 Elsevier B.V., All rights reserved.",

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doi = "10.1016/j.combustflame.2015.09.027",

language = "English (US)",

volume = "163",

pages = "202--208",

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AU - Hartl, K. A.

AU - Smits, A. J.

N1 - Funding Information: The assistance of Mr. Timothy Bennett in helping with the design and construction of the experimental setup used in this study is greatly appreciated. The assistance of Dr. Tyler Van Buren in preparing Fig. 1 is greatly appreciated. Part of this work was supported by Princeton University ’s Andlinger Center for Energy and the Environment. Publisher Copyright: © 2015 The Combustion Institute. Copyright: Copyright 2015 Elsevier B.V., All rights reserved.

PY - 2016/1/1

Y1 - 2016/1/1

N2 - The behavior of a fire whirl generated using a burner is examined using Particle Image Velocimetry. Swirl is generated using two staggered cylinder halves that surround the burner. The unsteadiness of the whirl is characterized, and the ensemble-averaged mean velocity profiles are obtained based on the instantaneous whirl position. The non-dimensional circulation and whirl height, and the Froude number based on the centerline velocity and height above the burner, are shown to follow simple scaling laws. In particular, we show that the non-dimensional whirl height depends only on the non-dimensional circulation.

AB - The behavior of a fire whirl generated using a burner is examined using Particle Image Velocimetry. Swirl is generated using two staggered cylinder halves that surround the burner. The unsteadiness of the whirl is characterized, and the ensemble-averaged mean velocity profiles are obtained based on the instantaneous whirl position. The non-dimensional circulation and whirl height, and the Froude number based on the centerline velocity and height above the burner, are shown to follow simple scaling laws. In particular, we show that the non-dimensional whirl height depends only on the non-dimensional circulation.

KW - Circulation

KW - Fire whirl

KW - Froude number

KW - Scaling behavior

KW - Stereo particle image velocimetry

KW - Velocity profiles

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DO - 10.1016/j.combustflame.2015.09.027

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VL - 163

SP - 202

EP - 208

JO - Combustion and Flame

JF - Combustion and Flame

ER -

Scaling of a small scale burner fire whirl

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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