Flame quenching in front of a cold wall under two-step kinetics
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Cited by (51)
Heat transfer augmentation by recombination reactions in turbulent reacting boundary layers at elevated pressures
2021, International Journal of Heat and Mass TransferNear-wall flame propagation behaviour with and without surface reactions
2020, FuelCitation Excerpt :On the other hand, HOQ is the phenomenon that the flame propagates perpendicularly to the wall, subsequently impinges on the wall and quenches. Since understanding the SWQ and HOQ mechanisms is believed to be important for enhancement of thermal efficiency and reduction of pollutant emissions, many studies have been conducted numerically and experimentally [2–15]. Several important findings have been made in earlier studies based on one-dimensional HOQ simulations.
Wall-impinging laminar premixed n-dodecane flames under autoignitive conditions
2019, Proceedings of the Combustion InstituteCitation Excerpt :Thus, a number of studies have investigated flame–wall interaction in canonical, one-dimensional (1D) configurations. Premixed and non-premixed flames in a 1D head-on quenching configuration have been studied extensively and it is well understood that the maximum wall heat flux occurs when the flame quenches [10,12–19]. A more detailed analysis presented in these studies demonstrated the importance of radical recombination reactions at the wall with respect to the maximum wall heat flux.
Boundary layer flashback of non-swirling premixed flames: Mechanisms, fundamental research, and recent advances
2017, Progress in Energy and Combustion ScienceCitation Excerpt :Numerical simulations of boundary layer flashback have provided important details about the influence of the flame on the flow field. One-dimensional numerical simulations have been conducted for flame propagation normal to the wall (see head-on quenching in Fig. 7) by different studies [123,125,165–169]. However, only a few studies have addressed laminar boundary layer flashback, and these are summarized in this section.
Advanced laser diagnostics for an improved understanding of premixed flame-wall interactions
2015, Proceedings of the Combustion InstituteDirect numerical simulation of laminar flame-wall interaction for a novel H<inf>2</inf>-selective membrane/injector configuration
2014, International Journal of Hydrogen EnergyCitation Excerpt :We perform direct numerical simulations of head-on quenching (HOQ) and side-on quenching (SOQ) configurations, as described in [12], comparing the flame propagation and quenching behavior at a traditional solid wall versus a notional permeable (H2-selective membrane) wall for initially fuel-lean, stoichiometric and fuel-rich equivalence ratios. A number of studies of flame–wall interaction (FWI) configurations exist in the literature [12–18] but none of these have considered a wall permeable to a reactant species. In general, the FWI process can be conveniently described by two quenching parameters, the quenching Peclet number, Peq = xq/δq and the quenching wall heat flux Fw,q = Φw,q/Pq.