A Numerical Investigation of Flame Lift-Off in Diesel Jets

Diesel fuel jet lift-off stabilization in the presence of laser-induced plasma ignition

“…[6]. Briefly, these methods range from detailed chemistry modeling in well-stirred reactors (no subgrid combustion model) [7,8], to representative interactive flamelet (RIF) models [6,9,10], or hybrid models including both premixed flame propagation and nonpremixed flames [2,11,12]. Well-stirred reactor models exhibit lifted flames [7,8].…”

An evaluation of the assumptions of the flamelet model for diesel combustion modeling

“…The temperatures obtained from this solution are then tabulated as a function of Z, Λ, and χ st . This look-up table is then employed to determine the temperature in the laminar simulations (Venugopal and Abraham, 2007). Fig.…”

Numerical studies of vortex-induced extinction/reignition relevant to the near-field of high-Reynolds number jets

“…Hence, understanding lift-off, and the development of predictive computational tools for diesel jet flames are important. Recent attempts in literature 3 to numerically predict diesel flame lift-off with conventional Reynolds-averaged Navier-Stokes ͑RANS͒-based modeling approaches, such as steady diffusion flamelets 4 and perfectly stirred reactors 5 have met with only limited success. RANS models are also inadequate in reproducing the mixing and entrainment characteristics in the jet-near-field region where lift-off occurs.…”