Results 151 to 160 of about 17,301 (197)

Modeling CO With Flamelet-Generated Manifolds: Part 2 — Application

Volume 2: Combustion, Fuels and Emissions, Parts A and B, 2012
Conventional Flamelet Generated Manifold (FGM) closure of the mean progress variable reaction rate assumes PDF shapes to account for turbulent fluctuations. The FGM parameters are commonly assumed to be statistically independent, and the marginal PDFs invariably require second moments, which are difficult to model accurately and have limited ...
Graham Goldin, Zhuyin Ren, Hendrik Forkel, Liuyan Lu, Venkat Tangirala, Hasan Karim   +5 more
openaire   +1 more source

Numerical simulations of a turbulent lifted hydrogen flame in vitiated coflow with flamelet generated manifold approach

International Journal of Turbo & Jet-Engines
Numerical investigation of turbulent lifted H2/N2 jet flame in vitiated hot coflow is presented. Turbulent combustion modeling is performed by using flamelet generated manifold approach and presumed probability density function for turbulence-chemistry ...
Zhengxin Lai, Wenyan Song, Qiuyin Wang
semanticscholar   +1 more source

Comparison of Performance of Flamelet Generated Manifold Model With That of Finite Rate Combustion Model for Hydrogen Blended Flames

Volume 3B: Combustion, Fuels, and Emissions, 2021
International Air Transport Association (IATA) sets a 50% reduction in 2005 CO2 emissions levels by 2050, with no increase in net emissions after 2020 [1].
S. Shrivastava, Ishan Verma, Rakesh Yadav, Pravin M. Nakod, Stefano Orsino   +4 more
semanticscholar   +1 more source

Composition-space premixed flamelet solution with differential diffusion for in situ flamelet-generated manifolds

Combustion and Flame, 2011
Abstract Canonical flame problems have been widely used in the combustion literature to tabulate detailed chemistry. Prior to three-dimensional flame simulations, reference laminar premixed flames are usually solved in physical-space, and, diffusion flames in either physical, or, mixture fraction space. Composition-space solutions would be convenient
Lodier, G., Vervisch, Luc, Moureau, Vincent, Domingo, P.   +3 more
openaire   +2 more sources

Formulation and assessment of flamelet-generated manifolds for reacting interfaces

Combustion and Flame, 2016
The coupling of heat and mass transfer at the surface of solid or liquid fuels is important when modeling near-surface gasification and combustion processes. Modeling the reacting boundary layer with the use of finite-rate chemistry allows for a highly accurate description of the coupling between the flame and fuel surface, but is not tractable when ...
Brian T. Bojko, Paul E. DesJardin
openaire   +1 more source

Large Eddy Simulation of n-dodecane spray flames using Flamelet Generated Manifolds

Combustion and Flame, 2016
In the present study the Engine Combustion Network (ECN) "Spray A" target conditions are investigated using the Large Eddy Simulation (LES) and the Flamelet Generated Manifold (FGM) methods. We investigate n-dodecane spray flames at three different ambient oxygen levels in engine relevant conditions. The flamelet database is generated by simulating the
Kaario, Ossi, Vuorinen, Ville, Somers, Bart, Wehrfritz, Armin   +4 more
openaire   +4 more sources

Turbulent Combustion Modeling Using Flamelet-Generated Manifolds for Gas Turbine Applications in OpenFOAM

Volume 4B: Combustion, Fuels and Emissions, 2014
The continuous interest in reducing pollutions and developing both an efficient and clean combustion system require large attention in the design requirements, especially when related to industrial gas turbine application. Although in recent years the advancements in modelling have increased dramatically, combustion still needs a huge computational ...
Fancello, Alessio, Panek, Lukasz, Lammel, Oliver, Krebs, Werner, Bastiaans, Rob J.M., de Goey, Philip L.P.H.   +5 more
openaire   +2 more sources

Flamelet Generated Manifold Simulation of Turbulent Non-Premixed Bluff Body Flames

Volume 2: Combustion, Fuels, and Emissions; Renewable Energy: Solar and Wind; Inlets and Exhausts; Emerging Technologies: Hybrid Electric Propulsion and Alternate Power Generation; GT Operation and Maintenance; Materials and Manufacturing (Including Coatings, Composites, CMCs, Additive Manufacturing); Analytics and Digital Solutions for Gas Turbines/Rotating Machinery, 2019
Abstract In this paper, the turbulent jet diffusion flame stabilized behind a bluff body (HM1) is simulated using the Flamelet Generated Manifold (FGM) model. Interactions between turbulence and chemistry are detailed in this paper.
Ishan Verma, Rakesh Yadav, Pravin Nakod, Patrick Sharkey, Shaoping Li, Ellen Meeks   +5 more
openaire   +1 more source

Development of a Multiphase Flamelet Generated Manifold for Spray Combustion Simulations

Journal of Engineering For Gas Turbines and Power, 2020
In this study, a model flame of quasi-one-dimensional (1D) counterflow spray flame has been developed. The two-dimensional (2D) multiphase convection-diffusion-reaction equations have been simplified to one dimension using similarity reduction under ...
Xu Zhang, Ran Yi, C. P. Chen
semanticscholar   +1 more source

Stress-Blended Eddy Simulation/Flamelet Generated Manifold Simulation of Film-Cooled Surface Heat Transfer and Near-Wall Reaction

Journal of turbomachinery, 2020
Accurate numerical prediction of surface heat transfer in the presence of film cooling within aero-engine sub-components, such as blade effusion holes and combustor liners, has long been a goal of the aero-engine industry.
Yu Xia, P. Sharkey, Stefano Orsino, Michael Kuron, F. Menter, Ishan Verma, R. Malecki, B. Sen   +7 more
semanticscholar   +1 more source