Results 21 to 30 of about 1,216,705 (204)

Turbulence and Combustion Model Choice for Modeling Methane-air Low Swirl Burners [PDF]

Journal of Applied Fluid Mechanics
Combustion plays a major role in satisfying enormous needs in our world, and burners are an essential component of industrial combustion applications. With its flame stabilization technique, low swirl burner (LSB) technology offers interesting outcomes ...
M. Ladjani, M. S. Lounici, S. Ouchikh
doaj   +1 more source

An algorithm for LES of premixed compressible flows using the Conditional Moment Closure model [PDF]

, 2011
A novel numerical method has been developed to couple a recent high order accurate fully compressible upwind method with the Conditional Moment Closure combustion model. The governing equations, turbulence modelling and numerical methods are presented
Bilger, R. W., R.W. Bilger, Thornber, Ben, Hawkes, E. R., B. Thornber, A.R. Masri, Masri, A. R., E.R. Hawkes   +7 more
core   +1 more source

Experimental and Numerical Study of Oxygen Diluted Partially Premixed Dimethyl Ether/ Methane Counter Flow Flame

Chemical Engineering Transactions, 2017
The oxygen diluted partially premixed dimethyl ether/methane counter flow flames were discussed in this paper. Flame images and flame structures were obtained through experiments and numerical simulation.
J. Luo, W. Li, L. Tian, L. Liu
doaj   +1 more source

Flamelet Characteristics of Gaseous and Spray Lifted Flames on Two-Dimensional Direct Numerical Simulations

Journal of Fluid Science and Technology, 2008
The detailed behaviors of gaseous and spray lifted flames are studied by two- dimensional direct numerical simulations (DNS), and the characteristics of the flamelets are investigated in terms of two key variables for flamelet modeling, namely mixture ...
Yuya BABA, Ryoichi KUROSE
doaj   +1 more source

Dynamics of Thermoacoustic Oscillations in Swirl Stabilized Combustor without and with Porous Inert Media

Journal of Combustion, 2022
Lean premixed (LPM) combustion processes are of increased interest to the gas turbine industry due to their reduction in harmful emissions. These processes are susceptible to thermoacoustic instabilities, which are produced when energy added by an in ...
Cody Dowd, Joseph Meadows
doaj   +1 more source

Measurement of Temperature and H₂O Concentration in Premixed CH₄/Air Flame Using Two Partially Overlapped H₂O Absorption Signals in the Near Infrared Region

Applied Sciences, 2021
It is important to monitor the temperature and H2O concentration in a large combustion environment in order to improve combustion (and thermal) efficiency and reduce harmful combustion emissions.
Sunghyun So, Nakwon Jeong, Aran Song, Jungho Hwang, Daehae Kim, Changyeop Lee   +5 more
doaj   +1 more source

A Numerical Simulation Study on the Combustion of Natural Gas Mixed with Hydrogen in a Partially Premixed Gas Water Heater

Energies
To investigate the impact of blending natural gas with hydrogen on the combustion performance of partially premixed gas water heaters, a framelet-generated manifold (FGM) was employed for lower-order simulation of combustion processes.
Siqi Li, Xiaoling Li, Hanlin Jin, Yi Liu, Yuguo Wu   +4 more
doaj   +1 more source

Non-linearities in the thermoacoustic response of a premixed swirl burner [PDF]

, 2009
PhDLean premixed combustion remains one of the simplest and most effective methods of reducing NOx emissions in industrial gas turbines. Lean premixed flames are however prone to an undesirable side effect known as combustion instability, reducing ...
Hosseini, S. M. Reza
core   +4 more sources

The Effects of CO2, N2, and H2O Dilutions on NO Formation of Partially Premixed Synthesis Gas Combustion

Cumhuriyet Science Journal, 2019
Oneof the main methods to decrease NO emission during the combustion of gases isthe use of diluents. This study is interested in the effects of CO2,N2, and H2O dilutions in the adiabatic, turbulent,partially premixed combustion of synthesis gas.
Suat Öztürk
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