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Large Eddy Simulations of gaseous flames in gas turbine combustion chambers [PDF]

, 2012
Recent developments in numerical schemes, turbulent combustion models and the regular increase of computing power allow Large Eddy Simulation (LES) to be applied to real industrial burners.
Staffelbach, Gabriel +2 more
core +1 more source

Parametric study of the non-premixed coal combustion in furnace for heat transfer and emission chara

Journal of Thermal Engineering, 2020
Steady-state turbulent non-premixed combustion of pulverized coal has been modeled in the two-dimensional furnace. Pulverized coal of three different types, low volatiles coal, medium volatile coal and high volatile coal, has been considered. The coal is
Satish Kumar DEWANGAN +2 more
doaj +1 more source

Supersonic Combustion Modeling and Simulation on General Platforms

Aerospace, 2022
Supersonic combustion is an advanced technology for the next generation of aerospace vehicles. In the last two decades, numerical simulation has been widely used for the investigation on supersonic combustion.
Shizhuo Huang +4 more
doaj +1 more source

Feature extraction and artificial neural networks for the on-the-fly classification of high-dimensional thermochemical spaces in adaptive-chemistry simulations

Data-Centric Engineering, 2021
The integration of Artificial Neural Networks (ANNs) and Feature Extraction (FE) in the context of the Sample- Partitioning Adaptive Reduced Chemistry approach was investigated in this work, to increase the on-the-fly classification accuracy for very ...
Giuseppe D’Alessio, Alberto Cuoci, Alessandro Parente +2 more
doaj +1 more source

Entropy Generation Analysis in Turbulent Reacting Flows and Near Wall: A Review

Entropy, 2022
This paper provides a review of different contributions dedicated thus far to entropy generation analysis (EGA) in turbulent combustion systems.
Amsini Sadiki, Senda Agrebi, Florian Ries +2 more
doaj +1 more source

Rans numerical simulation of lean premixed bluff body stabilized combustor comparison of turbulence

Journal of Thermal Engineering, 2017
Many gas turbine combustors use bluff-body flameholders to enhance mixing and maintain flame stabilization inside the combustor. Computational Fluid Dynamics (CFD) can greatly help in the design and development of gas turbine combustors.
A.F. Sudarma
doaj +1 more source

Liquid Rocket Engine Performance Characterization Using Computational Modeling: Preliminary Analysis and Validation

Aerospace
The need to refuel future missions to Mars and the Moon via in situ resource utilization (ISRU) requires the development of LOX/LCH4 engines, which are complex and expensive to develop and improve.
Md. Amzad Hossain +4 more
doaj +1 more source

A Phenomenological Model for the Unsteady Combustion of Solid Propellants from a Zel’dovich-Novzhilov Approach

Aerospace, 2023
Solid rocket motors are prone to combustion instabilities, which may lead to various problems for the rockets, from unexpected oscillations, precision decreasing, to explosion.
Zhuopu Wang, Wenchao Zhang, Yuanzhe Liu
doaj +1 more source

Turbulent Flame Behavior near Blow-Off in Multi-Stage Swirl Combustors: A Hybrid RANS-LES Study

Aerospace
Advances in high-performance computing have expanded the use of computational fluid dynamics (CFD) for reacting-flow analysis; however, simulations involving detailed flame kinetics remain computationally intensive for many practical systems.
Marcel Ilie, Brandon O'Brien
doaj +1 more source

Comparison of Combustion Models for Lifted Hydrogen Flames within RANS Framework

Energies, 2019
Within the framework of a Reynolds averaged numerical simulation (RANS) methodology for modeling turbulence, a comparative numerical study of turbulent lifted H2/N2 flames is presented.
Ali Cemal Benim, Björn Pfeiffelmann
doaj +1 more source

cfd
diesel engine
combustion