Results 71 to 80 of about 15,347 (202)
Flow Field of Turbulent Premixed Combustion in a Cyclone-Jet Combustor
Journal of Thermal Science and Technology, 2007 The flow field in highly turbulent premixed combustion has been examined, using a cyclone-jet combustor. The shear-strain rate is obtained by PIV system. Results show that, in combustion field, mean axial velocity does not decay along center axis and RMS
Kazuhiro YAMAMOTO +4 more
doaj +1 more source
Numerical Implementation and validation of turbulent premixed combustion model for lean mixtures
MATEC Web of Conferences, 2018 The present paper discusses the numerical investigation of turbulent premixed flames under lean conditions. Lean premixed combustion, a low NOx emission technique but are prone to instabilities, extinction and blow out.
Muppala Siva, Madhav Rao Vendra C.
doaj +1 more source
LES Modelling of Propagating Turbulence Premixed Flames using a Dynamic Flame Surface Density Model [PDF]
A Dynamic flame surface density (DFSD) model, developed recently from experimental images for transient turbulent premixed flames, is implemented and tested using the large eddy simulation (LES) modelling technique.
Gubba, SR +3 more
core
Applications in Energy and Combustion ScienceLarge eddy simulation (LES) is an important tool for studying turbulent spray combustion and developing next-generation combustion devices. In LES, the subgrid-scale (SGS) stress needs to be modeled with the closure models.
Yicun Wang +5 more
doaj +1 more source
Statistical analysis of the velocity and scalar fields in reacting turbulent wall-jets
, 2015 The concept of local isotropy in a chemically reacting turbulent wall-jet flow is addressed using direct numerical simulation (DNS) data. Different DNS databases with isothermal and exothermic reactions are examined.
A. V. Johansson +7 more
core +1 more source
Large Eddy Simulation of a Swirl-Stabilized Pilot Combustor from Conventional to Flameless Mode
Journal of Combustion, 2016 This paper investigates flame and flow structure of a swirl-stabilized pilot combustor in conventional, high temperature, and flameless modes by means of a partially stirred reactor combustion model to provide a better insight into designing lean ...
Ehsan Fooladgar, C. K. Chan
doaj +1 more source
Effervescent Breakup and Combustion of Liquid Fuels: Experiment and Modelling [PDF]
, 2014 Tato práce se zaměřuje na oblast effervescentních sprejů a jejich aplikace na kapalné spalování s důrazem na průmyslové spalovací komory. Oba aspekty – modelování a experiment – jsou řešeny.
Broukal, Jakub
core
Premixed Turbulent Combustion in Opposed Streams
, 1992 Premixed turbulent combustion in opposed streams has been studied experimentally by the use of two component laser doppler aneomometry. This flow geometry is part of a class of stagnating flows used to study turbulent combustion in recent years. It does not involve any surface near the flames because of the flow symmetry thus circumventing many of the ...
Kostiuk, L. W., Cheng, R. K.
openaire +1 more source
Nongradient diffusion in premixed turbulent flames [PDF]
Recent theoretical and experimental results demonstrating the interaction between force fields and density inhomogeneities as they arise in premixed turbulent flames are discussed.
Libby, Paul A.
core +1 more source
Non-premixed Flame-Turbulence Interaction in Compressible Turbulent Flow [PDF]
, 2002 Nonpremixed turbulent reacting flows are intrinsically difficult to model due to the strong coupling between turbulent motions and reaction. The large amount of heat released by a typical hydrocarbon flame leads to significant modifications of the ...
Livescu, Daniel, Madnia, Cyrus K.
core +1 more source