Results 31 to 40 of about 646,208 (201)
Ultra-Lean Premixed Turbulent Combustion: Challenges of RANS Modelling
Energies, 2022 The main challenge of improving spark ignition (SI) engines to achieve ever increasing thermal efficiencies and near-zero pollutant emissions today concerns developing turbulent combustion under homogeneous ultra-lean premixed mixtures (HULP).
Lorenzo Sforza +3 more
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Non-Premixed Filtered Tabulated Chemistry for LES: Evaluation on Sandia Flames D and E
Fuels, 2022 The non-premixed filtered tabulated chemistry for large eddy simulations employs numerical filtering to resolve a thin flame front on practical LES numerical grids. The flame structure is modified to be coherent with the domain discretization.
Pedro Javier Obando Vega +3 more
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Modelling of premixed combustion in a gas turbine [PDF]
, 1998 Three steady state combustion models, two turbulence models and a model for tK'6 prediction of NO., were implemented and investigated on a simple backward facing step experiment as well as an experimental lean prevaporised premixed (LPP) combustor ...
Engelbrecht, Geoffrey E.
core +3 more sources
Probabilistic deep learning of turbulent premixed combustion
AIP Advances, 2023 A probabilistic data-driven approach that models the filtered reaction rate in large-eddy simulation (LES) is investigated. We propose a novel framework that incorporates a conditional generative adversarial network and a Gaussian mixture model to take ...
Junsu Shin +3 more
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Joint stereo-PIV and NO-LIF in turbulent premixed hydrogen-air flames [PDF]
, 2009 A new technique to simultaneously and instantaneously resolve 3D velocity/2D strain rate fields and scalar/scalar gradient fields was developed and evaluated in this study.
Magand, Christelle C. G.
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Journal of Combustion, 2019 This paper extends a recent theoretical study that was previously presented in the form of a brief communication (Zimont, C&F, 192, 2018, 221-223), in which we proposed a simple splitting method for the derivation of two-fluid conditionally averaged ...
Vladimir L. Zimont
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Examining the Cascade Hypothesis for Turbulent Premixed Combustion [PDF]
Combustion Science and Technology, 1998 The cascade hypothesis, which was introduced in application for premixed combustion by Yakhot (1988) and Sivashinsky (1988), is examined against the correlations of the turbulent burning velocity data by Bradley, Lau and Lawes (1992) (BLL data). A new, less restrictive formulation of the cascade hypothesis is suggested.
openaire +3 more sources
Energies, 2020 In recent years, the tomographic visualization of laminar and turbulent flames has received much attention due to the possibility of observing combustion processes on-line and with high temporal resolution.
Thomas Häber +2 more
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Fluids, 2021 In this paper, we critically analyzed possibilities of probability density function (PDF) methods for the closed-form description of combustion chemical effects in turbulent premixed flames.
Vladimir L. Zimont
doaj +1 more source
Investigations on conical lean turbulent premixed hydrogenated natural gas flames
Fuel CommunicationsHydrogen's ability to enhance carbon neutrality in combustion processes puts forward the use of hydrogenated fuels, both in the form of fuel and an energy carrier as a potential decarbonization solution.
Dilay Güleryüz +2 more
doaj +1 more source