Parametric studies of a side wall quench layer

Saffman, M.

doi:10.1016/0010-2180(84)90023-3

Cited by 23 publications

(3 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to the complexity of the coupling between chemical reaction, heat release and fluid dynamics, FWI has been investigated primarily based on three generic quenching configurations: head-on quenching (HOQ) with flame propagating to the wall at a normal angle (Hocks et al 1981;Westbrook et al 1981;Vosen et al 1985;Ezekoye et al 1992;Poinsot et al 1993;Ezekoye & Greif 1993;Wichman & Bruneaux 1995;Popp et al 1996;Bruneaux et al 1996;Popp & Baum 1997;Bruneaux et al 1997;Ezekoye 1998;Enomoto 2001;Foucher et al 2003;Bellenoue et al 2003;Boust et al 2007;Sotton et al 2007;Mann et al 2014;Lai & Chakraborty 2016a,b), side-wall quenching (SWQ) in which flame propagates parallel to the wall (Krmn & Milln 1953;Clendening et al 1981;Cheng et al 1981;Ng et al 1982;Saffman 1984;Lu et al 1991;Ezekoye et al 1992;Ezekoye & Greif 1993;Zhang et al 1996;Alshaalan & Rutland 1998;Andrae et al 2002;Enomoto 2002;Bellenoue et al 2003;Boust et al 2007;Tayebi et al 2008;Gruber et al 2010) and total quenching occurring in a tube with sufficiently small diameter (Putnam & Jensen 1948;Jarosiski 1983;Fairchild et al 1985;Jarosins...…”

Section: Introductionmentioning

confidence: 99%

Analysis of the flame–wall interaction in premixed turbulent combustion

2018

View full text Add to dashboard Cite

The present work focuses on the flame–wall interaction (FWI) based on direct numerical simulations (DNS) of a head-on premixed flame quenching configuration at the statistically stationary state. The effects of FWI on the turbulent flame temperature, wall heat flux, flame dynamics and flow structures were investigated. In turbulent head-on quenching, particularly for high turbulence intensity, the distorted flames generally consist of the head-on flame part and the entrained flame part. The flame properties are jointly influenced by turbulence, heat generation from chemical reactions and heat loss to the cold wall boundary. For the present FWI configuration, as the wall is approached, the ‘influence zone’ can be identified as the region within which the flame temperature, scalar gradient and flame dilatation start to decrease, whereas the wall heat flux tends to increase. As the distance to the wall drops below the flame-quenching distance, approximately where the wall heat flux reaches its maximum value, chemical reactions become negligibly weak inside the ‘quenching zone’. A simplified counter-flow model is also proposed. With the reasonably proposed relation between the flame speed and the flame temperature, the model solutions match well with the DNS results, both qualitatively and quantitatively. Moreover, near-wall statistics of some important flame properties, including the flame dilatation, reaction progress variable gradient, tangential strain rate and curvature were analysed in detail under different wall boundary conditions.

show abstract

Section: Introductionmentioning

confidence: 99%

Analysis of the flame–wall interaction in premixed turbulent combustion

2018

View full text Add to dashboard Cite

show abstract

“…The same experimental setup has then been studied numerically by Ganter et al [5] and Heinrich et al [4] using different reaction-diffusion models and 2D/3D simulations, where the calculated wallnormal temperature profiles, heat fluxes and wall distances showed a good agreement with measured data. Saffman [11] measured the quenching distances for different hydrocarbon fuels and equivalence ratios. The experimental and numerical works by Häber and Suntz [6] and Strassacker et al [7] have been focused on the effect of different wall materials, including heterogeneous wall reactions.…”

Section: Introductionmentioning

confidence: 99%

DNS of Near Wall Dynamics of Premixed CH4/Air Flames

Zhang¹,

Zirwes²,

Häber³

et al. 2021

14th WCCM-ECCOMAS Congress

View full text Add to dashboard Cite

This work presents a numerical study on the effect of flame-wall interaction (FWI) from the viewpoint of flame dynamics. For that purpose, direct numerical simulations (DNS) employing detailed calculations of reaction rates and transport coefficients have been applied to a 2D premixed methane/air flame under atmospheric condition. Free flame (FF) and side-wall quenching (SWQ) configurations are realized by defining one lateral boundary as either a symmetry plane for the FF or a cold wall with fixed temperature at 20 o C for the SWQ case. Different components of flame stretch and Markstein number regarding tangential, normal (due to curvature) and total stretch, Ka s , Ka c and Ka tot = Ka s + Ka c , as well as their correlations with respect to the local flame consumption speed S L have been evaluated.

show abstract

“…The effect on the quenching layer thickness of different hydrocarbons with variations in the equivalence ratio and different wall conditions was researched by Saffman [8]. The investigations of Lu et al [9] and Ezekoye et al [10] used different fuels and equivalence ratios as well, but in a constant volume chamber.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Turbulent Near Wall Flame Behavior for a Sidewall Quenching Burner by Means of a Large Eddy Simulation and Tabulated Chemistry

Heinrich

Kuenne

Ganter

et al. 2018

Fluids

View full text Add to dashboard Cite

Combustion will play a major part in fulfilling the world’s energy demand in the next 20 years. Therefore, it is necessary to understand the fundamentals of the flame–wall interaction (FWI), which takes place in internal combustion engines or gas turbines. The FWI can increase heat losses, increase pollutant formations and lowers efficiencies. In this work, a Large Eddy Simulation combined with a tabulated chemistry approach is used to investigate the transient near wall behavior of a turbulent premixed stoichiometric methane flame. This sidewall quenching configuration is based on an experimental burner with non-homogeneous turbulence and an actively cooled wall. The burner was used in a previous study for validation purposes. The transient behavior of the movement of the flame tip is analyzed by categorizing it into three different scenarios: an upstream, a downstream and a jump-like upstream movement. The distributions of the wall heat flux, the quenching distance or the detachment of the maximum heat flux and the quenching point are strongly dependent on this movement. The highest heat fluxes appear mostly at the jump-like movement because the flame behaves locally like a head-on quenching flame.

show abstract

Parametric studies of a side wall quench layer

Cited by 23 publications

References 8 publications

Analysis of the flame–wall interaction in premixed turbulent combustion

Analysis of the flame–wall interaction in premixed turbulent combustion

DNS of Near Wall Dynamics of Premixed CH4/Air Flames

Investigation of the Turbulent Near Wall Flame Behavior for a Sidewall Quenching Burner by Means of a Large Eddy Simulation and Tabulated Chemistry

Contact Info

Product

Resources

About