Skip to main content
Log in

Simulation of Ethylene Wall Fires Using the Spatially-Evolving One-Dimensional Turbulence Model

  • Published:
Fire Technology Aims and scope Submit manuscript

Abstract

The mechanism of flame propagation in fuel beds of wildland fires is important to understand in order to quantify fire spread rates. Fires spread by radiative and convective heating and in some cases require direct flame contact to achieve ignition. The flame in an advancing fire is unsteady and turbulent, making study of intermittent flames in complex fuels difficult. A 1.83 m tall, 0.61 m wide vertical wall fire, in which ethylene fuel is slowly fed through a porous ceramic, is modeled to investigate unsteady turbulent flames in a controlled environment. Three fuel flow rates of 235, 390, and 470 L/min are considered. Simulations of this configuration are performed using a spatial formulation of the one-dimensional turbulence (ODT) model which is able to resolve individual flames (a key property of this model) and has been shown to provide turbulent statistics that compare well with experimental data for a number of flow configurations including wall fires. In the ODT model diffusion–reaction equations are solved along a notional line of sight perpendicular to the wall that is advanced vertically. Turbulent advection is modeled through stochastic domain mapping processes. A new Darrieus–Landau combustion instability model is incorporated in the ODT eddy selection process. The ODT model is shown to capture the evolution of the flame and describe the intermittent properties at the flame/air interface. Simulations include radiation and soot effects and are compared to experimental temperature measurements. Simulated mean temperatures differ from the experiments by an average of 63 K over all measurement points for the three fuel flow rates. Predicted root mean square temperature fluctuations capture the trends in the experimental data, but overestimate the raw experimental values by a factor of two. This difference is discussed using thermocouple response and heat transfer correction models. Simulated velocity, soot, and radiation properties are also reported.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13

Similar content being viewed by others

Abbreviations

ODT:

One-dimensional turbulence

RANS:

Reynolds averaged Navier–Stokes

LES:

Large eddy simulation

fwhm:

Full width at half maximum

RMS:

Root mean square

\(x\) :

Horizontal, wall-normal direction

\(y\) :

Vertical direction

\(t\) :

Time

\(T\) :

Temperature

\(P\) :

Pressure

\(P_a\) :

Eddy acceptance probability

\(P\) :

Probability density function

\(x_0\) :

Eddy location

\(l\) :

Eddy size

\(\tau \) :

Time scale, or momentum flux

\(\Delta t_s\) :

Eddy sample time

\(C\) :

ODT Eddy rate parameter

\(Z\) :

ODT viscous penalty parameter

\(\beta \) :

ODT large eddy suppression parameter

\(E\) :

Energy

\(K\) :

Eddy kernel function

\(\mu \) :

Viscosity

\(\rho \) :

Density

\(\rho _0\) :

Kernel averaged density

\(\Delta y_s\) :

Vertical spatial increment

\(v\) :

Velocity

\(\tilde{V}\) :

Favre mean velocity in eddy region

\(Y\) :

Mass fraction

\(X\) :

Mole fraction

\(M\) :

Soot moment

\(j\) :

Mass flux

\(\Delta x\) :

Grid cell size

\(\omega \) :

Reaction rate, or frequency

\(g\) :

Gravitational acceleration

\(S\) :

Source term

\(h\) :

Enthalpy

\(D\) :

Diffusivity

\(q\) :

Heat flux

\(\lambda \) :

Thermal conductivity

\(a\) :

Acceleration

\(\sigma \) :

Stefan Boltzmann constant

\(k\) :

Radiative absorption coefficient

\(f_v\) :

Soot volume fraction

\(\xi \) :

Mixture fraction

\(\epsilon \) :

Emissivity

\(h_c\) :

Heat transfer coefficient

\(Nu\) :

Nusselt number

\(Re\) :

Reynolds number

\(Pr\) :

Prandtl number

rms:

Root mean square

kin:

Kinetic energy

vp:

Viscous penalty

DL:

Darrieus–Landau

k:

Chemical species or soot moment \(k\)

i:

Chemical species or soot moment \(i\)

e:

East

w:

West

rad:

Radiation

g:

Gas

s:

Soot

t:

Thermocouple

\(\infty \) :

Ambient condition

\(+\) :

Positive x directed radiative flux

\(-\) :

Negative x directed radiative flux

References

  1. Overholt KJ, Cabrera J, Kurzawski A, Koopersmith M, Ezekoye OA (2014) Characterization of fuel properties and fire spread rates for little bluestream grass. Fire Technol 50:9–38

    Article  Google Scholar 

  2. Drysdale D (2011) An introduction to fire dynamics, 3rd edn. Wiley, New York

    Book  Google Scholar 

  3. Pitts WM (1991) Wind effects on fires. Prog Energy Combust Sci 17:83–134

    Article  Google Scholar 

  4. Weber RO (1991) Fire spread through fuel beds. Prog Energy Combust Sci 17:67–82

    Article  Google Scholar 

  5. Baines PG (1990) Physical mechanisms for the propagation of surface fires. Math Comput Model 13:83–94

    Article  Google Scholar 

  6. Finney MA, Jimenez D, Cohen JD, Grenfell IC, Wold C (2010) Structure of diffusion flames from a vertical burner. In: VI International Conference on Forest Fire Research

  7. Cohen JD, Finney MA (2010) An examination of fuel particle heating during fire spread. In: VI International Conference on Forest Fire Research

  8. Yedinak K, Cohen JD, Forthofer J, Finney M (2010) An examination of flame shape related to convection heat transfer in deep-fuel beds. Int J Wildland Fire 19:171–178

    Article  Google Scholar 

  9. Emmons HW (1985) The further history of fire science. Fire Technol 21:230–238

    Article  Google Scholar 

  10. Morvan D (2011) Physcial phenomena and length scales governing the bahavior of wildfires: a case for physical modelling. Fire Technol 47:437–460

    Article  Google Scholar 

  11. Mell W, Jenkins MA, Gould J, Cheney P (2007) A physics-based approach to modelling grasland fires. Int J Wildland Fire 16:1–22

    Article  Google Scholar 

  12. Viegas DX, Simeoni A (2011) Eruptive behaviour of forest fires. Fire Technol 47:303–320

    Article  Google Scholar 

  13. Kerstein AR (1999) One-dimensional turbulence: model formulation and application to homogeneous turbulence, shear flows, and buoyant stratified flows. J Fluid Mech 392:277–334

    Article  MathSciNet  MATH  Google Scholar 

  14. Kerstein AR, Ashurst WT, Wunsch S, Nilsen V (2001) One-dimensional turbulence: vector formulation and application to free shear flows. J Fluid Mech 447:85–109

    Article  MATH  Google Scholar 

  15. Schmidt RC, Kerstein AR, Wunsch S, Nilsen V (2003) Near-wall LES closure based on one-dimensional turbulence modeling. J Comput Phys 186:317–355

    Article  MathSciNet  MATH  Google Scholar 

  16. Wunsch S, Kerstein AR (2005) A stochastic model for high Rayleigh-number convection. J Fluid Mech 528:173–205

    Article  MATH  Google Scholar 

  17. Gonzalez-Juez E, Kerstein AR, Lignell DO (2011) Fluxes across double-diffusive interfaces: a one-dimensional-turbulence study. J Fluid Mech 677:218–254

    Article  MathSciNet  MATH  Google Scholar 

  18. Dreeben TD, Kerstein AR (2000) Simulation of vertical slot convection using one-dimensional turbulence. Int J Heat Mass Transf 43:3823–3834

    Article  MATH  Google Scholar 

  19. Lignell DO, Rappleye D (2012) One-dimensional-turbulence simulation of flame extinction and reignition in planar ethylene jet flames. Combust Flame 159:2930–2943

    Article  Google Scholar 

  20. Punati N, Sutherland JC, Kerstein AR, Hawkes ER, Chen JH (2011) An evaluation of the one-dimensional turbulence model: comparison with direct numerical simulations of \(\text{ CO/H }_2\) jets with extinction and reignition. Proc Combust Inst 33:1515–1522

    Article  Google Scholar 

  21. Hewson JC, Kerstein AR (2001) Stochastic simulation of transport and chemical kinetics in turbulent \(\text{ CO/H }_{2}/\text{ N }_2\) flames. Combust Theory Model 5:669–697

    Article  MATH  Google Scholar 

  22. Hewson JC, Kerstein AR (2002) Local extinction and reignition in nonpremixed turbulent \(\text{ CO/H }_{2}/\text{ N }_{2}\) jet flames. Combust Sci Technol 174:35–66

    Article  Google Scholar 

  23. Echekki T, Kerstein AR, Dreeben TD (2001) One-dimensional turbulence simulation of turbulent jet diffusion flames: model formulation and illustrative applications. Combust Flame 125:1083–1105

    Article  Google Scholar 

  24. Ricks AJ, Hewson JC, Kerstein AR, Gore JP, Tieszen SR, Ashurst WT (2010) A spatially developing one-dimensional turbulence (ODT) study of soot and enthalpy evolution in meter-scale buoyant turbulent flames. Combust Sci Technol 182:60–101

    Article  Google Scholar 

  25. Shihn H, DesJardin PE (2007) Near-wall modeling of an isothermal vertical wall using one-dimensional turbulence. Int J Heat Mass Transf 50:1314–1327

    Article  MATH  Google Scholar 

  26. Shihn H, DesJardin PE (2004) Near-wall modeling for vertical wall fires using one-dimensional turbulence. In: Proceedings of IMECE04 ASME International Mechanical Engineering Congress and Exposition, Anaheim, CA, November 13–20

  27. Kerstein AR (2002) One-dimensional turbulence: a new approach to high-fidelity subgrid closure of turbulent flow simulations. Comput Phys Commun 148:1–16

    Article  MATH  Google Scholar 

  28. Schmidt RC, Kerstein AR, McDermott R (2010) ODTLES: a multi-scale model for 3D turbulent flow based on one-dimensional turbulence modeling. Comput Methods Appl Mech Eng 199:865–880

    Article  MathSciNet  MATH  Google Scholar 

  29. McDermott RJ (2005) Toward one-dimensional turbulence subgrid closure for large-eddy simulation. PhD Thesis, The University of Utah

  30. Cao S, Echekki T (2008) A low-dimensional stochastic closure model for combustion large-eddy simulation. J Turbul 9:1–35

    MathSciNet  Google Scholar 

  31. Ahmad T, Faeth GM (1979) Turbulent wall fires. Proc Combust Inst 17:1149–1160

    Article  Google Scholar 

  32. Markstein GH, De Ris J (1992) Wall-fire radiant emission-part 2: radiation and heat transfer from porous-metal wall burner flames. Proc Combust Inst 24:1747–1752

    Article  Google Scholar 

  33. Quintiere JG (1981) An approach to modeling wall fire spread in a room. Fire Saf J 3:201–214

    Article  Google Scholar 

  34. Delichatsios MA (1986) A simple algebraic model for turbulent wall fires. Proc Combust Inst 21:53–64

    Article  Google Scholar 

  35. Joulain P (1996) Convective and radiative transport in pool and wall fires: 20 years of research in pointiers. Fire Saf J 26:99–149

    Article  Google Scholar 

  36. Wang HY, Coutin M, Most JM (2002) Large-eddy-simulation of buoyancy-driven fire propagation behind a pyrolysis zone along a vertical wall. Fire Saf J 37:259–284

    Article  Google Scholar 

  37. Ashurst WT, Kerstein AR (2005) One-dimensional turbulence: variable density formulation and application to mixing layers. Phys Fluids 17–025107:1–26

    MathSciNet  Google Scholar 

  38. Lignell DO, Kerstein AR, Sun G, Monson EI (2013) Mesh adaption for efficient multiscale implementation of one-dimensional turbulence. Theor Comput Fluid Dyn 27:273–295

    Article  Google Scholar 

  39. Lewis PA, Shedler GS (1979) Simulation of nonhomogeneous poisson processes by thinning. Naval Res Logist Q 26:403–413

    Article  MathSciNet  MATH  Google Scholar 

  40. Papoulis A, Unnikrishna Pillai S (2002) Probability, random variables, and stochastic processes, 4th edn. McGraw-Hill, New York

    Google Scholar 

  41. Goodwin D Cantera, an object-oriented software toolkit for chemical kinetics, thermodynamics, and transport processes, August 2011. http://code.google.com/p/cantera

  42. Cohen SD, Hindmarsh AC (1996) CVODE, a stiff/nonstiff ODE solver in C. Comput Phys, 10:138–143 http://llnl.gov/casc/sundials/

  43. Gonzalez-Juez E, Kerstein AR, Lignell DO (2013) Reactive Rayleigh–Taylor turbulent mixing: a one-dimensional-turbulence study. Geophys Astrophys Fluid Dyn 107:506–525

    Article  MathSciNet  Google Scholar 

  44. Westbrook CK, Dryer FL (1981) Simplified reaction mechanisms for the oxidation of hydrocarbon fuels in flames. Combust Sci Technol 27:31–43

    Article  Google Scholar 

  45. Lignell DO, Chen JH, Smith PJ, Lu T, Law CK (2007) The effect of flame structure on soot formation and transport in turbulent nonpremixed flames using direct numerical simulation. Combust Flame 151:2–28

    Article  Google Scholar 

  46. Leung KM, Lindstedt RP (1991) A simplified reaction mechanism for soot formation in nonpremixed flames. Combust Flame 87:289–305

    Article  Google Scholar 

  47. Peters N (1984) Laminar diffusion flamelet models in non-premixed turbulent combustion. Prog Energy Combust Sci 10:319–339

    Article  Google Scholar 

  48. Michael F (1993) Modest radiative heat transfer. McGraw-Hill, New York

    Google Scholar 

  49. Ju Y, Guo H, Maruta K, Liu F (1997) On the extinction limit and flammability limit of non-adiabatic stretched methaneair premixed flames. J Fluid Mech 342:315–334

    Article  MATH  Google Scholar 

  50. Pope SB (2000) Turbulent flows. Cambridge University Press, New York

    Book  MATH  Google Scholar 

  51. Mehta RS, Haworth DC, Modest MF (2009) An assessment of gas-phase reaction mechanisms and soot models for laminar atmospheric-pressure ethylene–air flames. Proc Combust Inst 32:1327–1334

    Article  Google Scholar 

  52. Lee SY, Turns SR, Santoro RJ (2009) Measurements of soot, oh, and pah concentrations in turbulent ethylene/air jet flames. Combust Flame 156:2264–2275

    Article  Google Scholar 

  53. Kent JH (1986) A quantitative relationship between soot yield and smoke point measurements. Combust Flame 63:349–358

    Article  Google Scholar 

  54. Shaddix CR (1999) Correcting thermocouple measurements for radiation loss: a critical review. In: NHTC99-282, 33rd National Heat Transfer Conference. Albuquerque, NM

  55. Csanady GT (1963) Turbulent diffusion of heavy particles in the atmosphere. J Atmos Sci 20:201–208

    Article  Google Scholar 

Download references

Acknowledgments

This work was supported by the USDA Forest Service Rocky Mountain Research Station.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to David O. Lignell.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Monson, E.I., Lignell, D.O., Finney, M.A. et al. Simulation of Ethylene Wall Fires Using the Spatially-Evolving One-Dimensional Turbulence Model. Fire Technol 52, 167–196 (2016). https://doi.org/10.1007/s10694-014-0441-2

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10694-014-0441-2

Keywords

Navigation