Results 1 to 10 of about 124,825 (153)

Computational Modeling of Boundary Layer Flashback in a Swirling Stratified Flame Using a LES-Based Non-Adiabatic Tabulated Chemistry Approach [PDF]

Entropy, 2021
When operating under lean fuel–air conditions, flame flashback is an operational safety issue in stationary gas turbines. In particular, with the increased use of hydrogen, the propagation of the flame through the boundary layers into the mixing section ...
Xudong Jiang, Yihao Tang, Zhaohui Liu, Venkat Raman   +3 more
doaj   +2 more sources

Development of a Computationally Efficient Tabulated Chemistry Solver for Internal Combustion Engine Optimization Using Stochastic Reactor Models

Applied Sciences, 2020
The use of chemical kinetic mechanisms in computer aided engineering tools for internal combustion engine simulations is of high importance for studying and predicting pollutant formation of conventional and alternative fuels.
Andrea Matrisciano, Tim Franken, Laura Catalina Gonzales Mestre, Anders Borg, Fabian Mauss   +4 more
doaj   +3 more sources

Non-Premixed Filtered Tabulated Chemistry: Filtered Flame Modeling of Diffusion Flames

Fuels, 2021
The flame front filtering is a well-known strategy in turbulent premixed combustion. An extension of this approach for the non-premixed combustion context has been proposed by means of directly filtering counterflow diffusion flamelets. Promising results
Pedro Javier Obando Vega, Axel Coussement, Amsini Sadiki, Alessandro Parente   +3 more
doaj   +1 more source

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   +1 more source

Tabulated Chemistry Combustion Model for Cost-Effective Numerical Simulation of Dual-Fuel Combustion Process

Energies, 2023
This study is dedicated to improving the efficiency of the flamelet-generated manifold (FGM) tabulated chemistry combustion modeling approach for predicting the combustion process in diesel-ignited internal combustion (IC) engines.
Marija Stipic, Branislav Basara, Steffen J. Schmidt, Nikolaus A. Adams   +3 more
doaj   +1 more source

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, Axel Coussement, Amsini Sadiki, Alessandro Parente   +3 more
doaj   +1 more source

Evaluation of Modeling Approaches for MILD Combustion Systems With Internal Recirculation

Frontiers in Mechanical Engineering, 2020
Numerical simulations employing two different modeling approaches are performed and validated against experimental results from a moderate or intense low-oxygen dilution (MILD) system with internal recirculation. The flamelet-generated manifold (FGM) and
Ruggero Amaduzzi, Ruggero Amaduzzi, Giuseppe Ceriello, Marco Ferrarotti, Marco Ferrarotti, Giancarlo Sorrentino, Alessandro Parente, Alessandro Parente   +7 more
doaj   +1 more source

APPLICATION OF ADVANCED COMBUSTION MODELS IN INTERNAL COMBUSTION ENGINES BASED ON 3-D CFD LES APPROACH

Acta Polytechnica, 2021
This paper deals with the application of advanced simulation techniques for combustion modeling in the case of an internal combustion engine. The main focus is put on models with a high predictive ability hence 3-D CFD was selected while using LES ...
Oldřich Vítek, Jan Macek, Vít Doleček, Zbyněk Syrovátka, Zoran Pavlovic, Peter Priesching, Ferry Tap   +6 more
doaj   +1 more source

Real-Time Emission Prediction with Detailed Chemistry under Transient Conditions for Hardware-in-the-Loop Simulations

Energies, 2021
The increasing requirements to further reduce pollutant emissions, particularly with regard to the upcoming Euro 7 (EU7) legislation, cause further technical and economic challenges for the development of internal combustion engines.
Mario Picerno, Sung-Yong Lee, Michal Pasternak, Reddy Siddareddy, Tim Franken, Fabian Mauss, Jakob Andert   +6 more
doaj   +1 more source

Development of a 0D multi-zone model for fast and accurate prediction of homogeneous charge compression ignition (HCCI) engine [PDF]

E3S Web of Conferences, 2021
Homogeneous Charge Compression Ignition (HCCI) is a promising advanced combustion mode, featured by both high thermal efficiency and low emissions.
Fasulo Giovanni, Bozza Fabio, Malfi Enrica, Teodosio Luigi   +3 more
doaj   +1 more source