Results 1 to 10 of about 17,301 (197)

Numerical Investigation of a Lifted Flame With Nonequilibrium Scalar Variance and Dissipation Rate Closure Model for Flamelet Generated Manifold

International Journal of Aerospace Engineering
Large eddy simulation (LES) of a turbulent lifted ethylene/nitrogen jet flame in highly-heated coflow is presented. Turbulent combustion modeling is performed by using the flamelet generated manifold (FGM) approach and presumed probability density ...
Zhengxin Lai, Wenyan Song, Qiuyin Wang
doaj   +3 more sources

Computation of Entropy Production in Stratified Flames Based on Chemistry Tabulation and an Eulerian Transported Probability Density Function Approach [PDF]

Entropy, 2022
This contribution presents a straightforward strategy to investigate the entropy production in stratified premixed flames. The modeling approach is grounded on a chemistry tabulation strategy, large eddy simulation, and the Eulerian stochastic field ...
Louis Dressler, Hendrik Nicolai, Senda Agrebi, Florian Ries, Amsini Sadiki   +4 more
doaj   +2 more sources

Combining flamelet-generated manifold and machine learning models in simulation of a non-premixed diffusion flame

Energy and AI, 2023
Flamelet Generated Manifold (FGM) is an example of a chemistry tabulation or a flamelet method that is under attention because of its accuracy and speed in predicting combustion characteristics.
Kaimeng Li, Pourya Rahnama, Ricardo Novella, Bart Somers   +3 more
doaj   +2 more sources

Numerical Simulations of Heat Loss Effect on Premixed Jet Flame Using Flamelet Generated Manifold Combustion Model

Energies, 2022
Numerical simulations are performed on a combustor setup which represents the recirculating behaviour of a combustor in the flameless combustion regime. Previous experimental and numerical studies showed that heat loss is prominent for this setup.
Jesse W. Hofsteenge, Alireza Ghasemi Khourinia, Jim B. W. Kok   +2 more
doaj   +2 more sources

Flamelet generated manifold simulation of highly swirling spray combustion: Adoption of a mixed homogeneous reactor and inclusion of liquid-flame heat transfer

AIP Advances, 2022
We undertake the modeling of the combustion of highly swirling fuel sprays using the Flamelet-Generated-Manifold (FGM) combustion-chemistry-reduction technique, especially the use of adiabatic tables generated with non-premixed chemical reactors ...
A. V. Brito Lopes, N. Emekwuru, E. Abtahizadeh   +2 more
doaj   +2 more sources

Implementation of the Semi Empirical Kinetic Soot Model Within Chemistry Tabulation Framework for Efficient Emissions Predictions in Diesel Engines [PDF]

Open Physics, 2019
Soot prediction for diesel engines is a very important aspect of internal combustion engine emissions research, especially nowadays with very strict emission norms. Computational Fluid Dynamics (CFD) is often used in this research and optimisation of CFD
Tvrdojevic Mijo, Vujanovic Milan, Priesching Peter, Tap Ferry A., Starikov Anton, Goryntsev Dmitry, Gavaises Manolis   +6 more
doaj   +2 more sources

Optimizing Flamelet Generated Manifold Models: A Machine Learning Performance Study

arXiv.org
In chemistry tabulations and Flamelet combustion models, the Flamelet Generated Manifold (FGM) is recognized for its precision and physical representation. The practical implementation of FGM requires a significant allocation of memory resources.
Reza Lotfi Navaei, Mohammad Safarzadeh, Seyed Mohammad Jafar Sobhani   +2 more
semanticscholar   +3 more sources

Investigation of the inverse crashing behavior of thin-walled shells filled with Flamelet-Generated Manifold foam and prediction of energy absorption utilizing artificial neural networks

Results in Materials
In this study, the energy absorption capability of thin-walled shells filled with foam with Functional properties with inverse deformation mode has been numerically evaluated.
Vahid Yousefi Ramandi, Mahmoud Mosavi Mashhadi, Keivan Hosseini safari, Mohammad Mahdi Kheirikhah   +3 more
doaj   +2 more sources

Flamelet generated manifolds for lean premixed turbulent hydrogen flames [PDF]

Proceedings of the Combustion Institute
Hydrogen is relatively simple to produce from renewable electricity, a clean energy carrier and a carbon-free alternative fuel. Therefore, the interest in developing models that can predict hydrogen combustion is continuously increasing.
Sanchez Bahoque, Gabriela, van Oijen, Jeroen   +1 more
core   +2 more sources

Incorporating unsteady flow-field effects in flamelet-generated manifolds [PDF]

, 2009
In general, simulating combustion can be a very costly job. This is caused by the large number of chemical reacting species that are strongly coupled. Moreover, all the (chemical) time-scales that are present, span a multitude of orders, which results in
Delhaye, S.
core   +7 more sources