Results 81 to 90 of about 646,208 (201)

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, Satoshi INOUE, Hiroshi YAMASHITA, Daisuke SHIMOKURI, Satoru ISHIZUKA   +4 more
doaj   +1 more source

Large eddy simulation of spray combustion in a lean direct injection combustor using a novel subgrid-scale stress model

Applications in Energy and Combustion Science
Large 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, Kun Luo, Hualin Xiao, Tai Jin, Changxiao Shao, Jianren Fan   +5 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

Experimental study of combustion and scalar mixing in swirling jet flows [PDF]

Turbulent mixing of passive scalar field and combustion of gaseous fuel were studied in the context of a non-premixed isothermal and reacting swirling jets discharged from a swirl-stabilised burner, as a function of swirl number.
Stetsyuk, V.
core   +2 more sources

FlameRF: A fast time-resolved reconstruction technique for turbulent flame using Tensorial Radiance Fields

Energy and AI
This work introduces a novel machine learning framework for reconstructing dynamic turbulent flames using Tensorial Radiance Fields (TensoRF), which is termed as FlameRF.
Shiyu Liu, Haiou Wang, Yuqi Huang, Kun Luo, Jianren Fan   +4 more
doaj   +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

Streamline segment analysis of turbulent premixed flames

, 2013
In this study the streamline segment analysis has been carried out for turbulent premixed flames in order to analyze the statistical properties of the flame surface, which are associated with the nearby extremal points.
Wang LP(王利坡), Chakraborty N, Zhang J(张健)   +2 more
core   +1 more source

Premixed turbulent combustion [PDF]

, 2000
openaire   +3 more sources

DNS of turbulence backscatter in a laboratory-scale swirl stabilized aero-combustor

Applications in Energy and Combustion Science
Classical theories of turbulence suggest that the kinetic energy cascade in nonreacting flows has a net transfer of energy from large to small scales. However, previous studies demonstrated that the thermal expansion of premixed flames can reverse the ...
Bruno S. Soriano, Jacqueline H. Chen
doaj   +1 more source

Simulations of combustion roar in turbulent attached and lifted turbulent methane jet flames

Engineering Transactions, 2014
The present work presents sample results of preliminary computations of the turbulent aerothermodynamic flow field and of the noise generated by the flame front, due to turbulent fluctuations in the flame (combustion roar), in lifted and attached jet ...
P. MARAZIOTI, P. KOUTMOS
doaj