Results 11 to 20 of about 616,928 (234)

Turbulent Premixed Combustion in SI Engine

open access: yesDiyala Journal of Engineering Sciences, 2018
The turbulent lean premixed combustion simulation is implemented in 4- stroke spark ignition (SI) engine. The Turbulent Flame speed Closure model (TFC) is used in different turbulent flow conditions.
Mohammed Alhumairi, Sami A. Nawi
doaj   +3 more sources

A Generalised Series Model for the LES of Premixed and Non-Premixed Turbulent Combustion

open access: yesEnergies, 2023
In this study, the generality and prediction accuracy of a generalised series model for the large eddy simulation of premixed and non-premixed turbulent combustion is explored. The model is based on the Taylor series expansion of the chemical source term
Weilin Zeng   +4 more
doaj   +5 more sources

Fundamental studies of premixed combustion [PDF]

open access: yes, 1998
The thesis comprises a fundamental study of spherical premixed flame propagation,originating at a point under both laminar and turbulent propagation.
Haq, Md Zahurul
core   +6 more sources

Conditional moment closures for turbulent reacting flows [PDF]

open access: yes, 2003
Mathematical modelling of the turbulent combustion process is becoming increasingly applied in calculations to assist in the design and analysis of practical combustion devices for efficiency-improvement and emission reduction. The current requirement to
Woolley, Robert Michael
core   +6 more sources

Modelling of premixed combustion in a gas turbine [PDF]

open access: yes, 1998
Three steady state combustion models, two turbulence models and a model for tK'6 prediction of NO., were implemented and investigated on a simple backward facing step experiment as well as an experimental lean prevaporised premixed (LPP) combustor ...
Engelbrecht, Geoffrey E.
core   +7 more sources

Lagrangian Formulation of Turbulent Premixed Combustion [PDF]

open access: yesPhysical Review Letters, 2011
The Lagrangian point of view is adopted to study turbulent premixed combustion. The evolution of the volume fraction of combustion products is established by the Reynolds transport theorem. It emerges that the burned-mass fraction is led by the turbulent particle motion, by the flame front velocity, and by the mean curvature of the flame front.
Pagnini, Gianni, Bonomi, Ernesto
openaire   +3 more sources

Joint stereo-PIV and NO-LIF in turbulent premixed hydrogen-air flames [PDF]

open access: yes, 2009
A new technique to simultaneously and instantaneously resolve 3D velocity/2D strain rate fields and scalar/scalar gradient fields was developed and evaluated in this study.
Magand, Christelle C. G.
core   +7 more sources

DNS for Turbulent Premixed Combustion

open access: yes, 2021
Most of practical combustion occurs in turbulent flows which involve strong coupling between turbulence and chemical processes. The heat release from combustion alters the fluid properties such as density and viscosity and in turns affects the turbulence.
Dipal Patel, Martin Agelin-Chaab
openaire   +2 more sources

A Similarity Subgrid Model for Premixed Turbulent Combustion [PDF]

open access: yesFlow, Turbulence and Combustion, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Vreman, A.W.   +2 more
openaire   +1 more source

Numerical analysis of reaction-diffusion effects on species mixing rates in turbulent premixed methane-air combustion [PDF]

open access: yes, 2009
The scalar mixing time scale, a key quantity in many turbulent combustion models, is investigated for reactive scalars in premixed combustion. Direct numerical simulations (DNS) of three-dimensional, turbulent Bunsen flames with reduced methane-air ...
Grout, R.W.   +7 more
core   +1 more source

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