0
Research Papers

Numerical Study of Counterflow Diffusion Flame and Water Spray Interaction

[+] Author and Article Information
Santanu Pramanik

Department of Mechanical Engineering,
Jadavpur University,
Kolkata 700032, India
e-mail: santanupramanik07@gmail.com

Achintya Mukhopadhyay

Department of Mechanical Engineering,
Jadavpur University,
Kolkata 700032, India
e-mail: achintya.mukho@gmail.com

1Present address: Combustion and Spray Lab, Mechanical Engineering Department, Indian Institute of Science, Bangalore 560012, India.

Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS. Manuscript received May 29, 2014; final manuscript received February 3, 2015; published online November 11, 2015. Assoc. Editor: Suman Chakraborty.

J. Thermal Sci. Eng. Appl 8(1), 011018 (Nov 11, 2015) (8 pages) Paper No: TSEA-14-1134; doi: 10.1115/1.4030735 History: Received May 29, 2014

This paper reports numerical investigation concerning the interaction of a laminar methane–air counterflow diffusion flame with monodisperse and polydisperse water spray. Commercial code ansys fluent with reduced chemistry has been used for investigation. Effects of strain rate, Sauter mean diameter (SMD), and droplet size distribution on the temperature along stagnation streamline have been studied. Flame extinction using polydisperse water spray has also been explored. Comparison of monodisperse and polydisperse droplet distribution on flame properties reveals suitability of polydisperse spray in flame temperature reduction beyond a particular SMD. This study also provides a numerical framework to study flame–spray interaction and extinction.

Copyright © 2016 by ASME
Your Session has timed out. Please sign back in to continue.

References

Lazzarini, A. K. , Krauss, R. H. , Chelliah, H. K. , and Linteris, G. T. , 2000, “Extinction Conditions of Non-Premixed Flames With Fine Droplets of Water and Water/NaOH Solutions,” Proc. Combust. Inst., 28(2), pp. 2939–2945. [CrossRef]
Mikami, M. , Miyamoto, S. , and Kojima, N. , 2002, “Counterflow Diffusion Flame With Polydisperse Sprays,” Proc. Combust. Inst., 29(1), pp. 593–599. [CrossRef]
Chelliah, H. K. , Lazzarini, A. K. , Wanigarathne, P. C. , and Linteris, G. T. , 2002, “Inhibition of Premixed and Non-Premixed Flames With Fine Droplets of Water and Solutions,” Proc. Combust. Inst., 29(1), pp. 369–376. [CrossRef]
Sasongko, M. N. , Mikami, M. , and Dvorjetski, A. , 2011, “Extinction Condition of Counterflow Diffusion Flame With Polydisperse Water Sprays,” Proc. Combust. Inst., 33(2), pp. 2555–2562. [CrossRef]
Chelliah, H. K. , and Lentati, A. M. , 1998, “Dynamics of Water Droplets in a Counterflow Field and their Effect on Flame Extinction,” Combust. Flame, 115(1), pp. 158–179. [CrossRef]
Hua, J. , Kumar, K. , Khoo, B. C. , and Xue, H. , 2002, “A Numerical Study of the Interaction of Water Spray With a Fire Plume,” Fire Saf. J., 37(7), pp. 631–657. [CrossRef]
Prasad, K. , Patnaik, G. , and Kailasanath, K. , 2002, “A Numerical Study of Water-Mist Suppression of Large Scale Compartment Fires,” Fire Saf. J., 37(6), pp. 569–589. [CrossRef]
Yang, P. , Liu, T. , and Qin, X. , 2010, “Experimental and Numerical Study on Water Mist Suppression System on Room Fire,” Build. Environ., 45(10), pp. 2309–2316. [CrossRef]
Gupta, M. , Rajora, R. , Sahai, S. , Shanker, R. , Ray, A. , and Kale, S. R. , 2012, “Experimental Evaluation of Fire Suppression Characteristics of Twin Fluid Water Mist System,” Fire Saf. J., 54, pp. 130–142. [CrossRef]
Smooke, M. D. , Puri, I. K. , and Sheshadri, K. , 1988, “A Comparison Between Numerical Calculations and Experimental Measurements of the Structure of a Counterflow Diffusion Flame Burning Diluted Methane in Diluted Air,” Twenty-First Symposium (International) on Combustion/The Combustion Institute, pp. 1783–1792. [CrossRef]
Morsi, S. A. , and Alexander, A. J. , 1972, “An Investigation of Particle Trajectories in Two Phase Flow System,” J. Fluid Mech., 55(2), pp. 193–208. [CrossRef]
Amantini, G. , Frank, J. H. , Smooke, M. D. , and Gomez, A. , 2007, “Computational and Experimental Study of Steady Axisymmetric Non-Premixed Methane Counterflow Flames,” Combust. Theory Modell., 11(1), pp. 47–72. [CrossRef]
Naito, H. , Uendo, T. , Saso, Y. , Kotani, Y. , and Yoshida, A. , 2011, “Effect of Fine Water Droplets on Extinguishment of Diffusion Flame Established in the Forward Stagnation Region of a Porous Cylinder,” Proc. Combust. Inst., 33(2), pp. 2563–2571. [CrossRef]

Figures

Grahic Jump Location
Fig. 1

Contours of static temperature of flame validated with Ref. [12] (Fig. 4(a) of Ref. [12])

Grahic Jump Location
Fig. 2

Comparison of temperature variation along the axis of symmetry (Fig. 5(a) of Ref. [12])

Grahic Jump Location
Fig. 3

Comparison of velocity variation along the axis of symmetry (Fig. 7 of Ref. [12])

Grahic Jump Location
Fig. 4

Variation of normalized OH mass fraction along the axis of symmetry (Fig. 9(b) of Ref. [12])

Grahic Jump Location
Fig. 5

Contours of static temperature of flame validated with Ref. [13] (Fig 4(a) in Ref. [13])

Grahic Jump Location
Fig. 6

Rosin–Rammler droplet distribution for various exponent values: n = 1, 4.0286, and 10

Grahic Jump Location
Fig. 7

Variations of velocity magnitude along stagnation streamline (Fig. 5 in Ref. [13])

Grahic Jump Location
Fig. 8

Variations of number mean droplet diameter along stagnation streamline (Fig. 5 in Ref. [13])

Grahic Jump Location
Fig. 9

Variations of mass flux of droplets along stagnation streamline (Fig. 5 in Ref. [13])

Grahic Jump Location
Fig. 10

Variation of maximum temperature drop along stagnation streamline with monodisperse water spray (a = 68 s−1, and water flow rate 5 ml/min)

Grahic Jump Location
Fig. 11

Variation of normalized maximum water mass fraction along stagnation streamline with monodisperse water spray (a = 68 s−1, water flow rate = 5 ml/min)

Grahic Jump Location
Fig. 12

Rosin–Rammler curve fits for experimental droplet distribution obtained from Ref. [4] (Fig. 2 of Ref. [4]): (a) Qatom = 9 l/min and (b) Qatom = 3 l/min

Grahic Jump Location
Fig. 13

Variation of maximum temperature along stagnation streamline with water mass flow rate for SMD = 40 and 114 μm

Grahic Jump Location
Fig. 14

Contours of static temperature for various water flow rates for SMD = 114 μm: (a) 10, (b) 15, (c) 20, (d) 21, (e) 22, and (f) 23 ml/min

Grahic Jump Location
Fig. 15

Variation of maximum temperature along stagnation streamline with SMD (a = 68 s−1 and water flow rate = 5 ml/min)

Grahic Jump Location
Fig. 16

Variation of maximum water mass fraction along stagnation streamline with SMD (a = 68 s−1 and water flow rate = 5 ml/min)

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In