Pre-Chamber Ignition Mechanism: Simulations of Transient Autoignition in a Mixing Layer Between Reactants and Partially-Burnt Products [0.03%]
预燃室点火机制：反应物与部分燃爆产物之间混合层中瞬态自燃的模拟研究
Jennifer A M Sidey,Epaminondas Mastorakos
Jennifer A M Sidey
The structure of autoignition in a mixing layer between fully-burnt or partially-burnt combustion products from a methane-air flame at ϕ = 0.85 and a methane-air mixture of a leaner equivalence ratio has been studied with transient diffusi...
Direct Numerical Simulation of Head-On Quenching of Statistically Planar Turbulent Premixed Methane-Air Flames Using a Detailed Chemical Mechanism [0.03%]
采用详尽化学动力学模型正面淬灭统计平面甲烷/空气预混火焰的直接数值模拟
Jiawei Lai,Markus Klein,Nilanjan Chakraborty
Jiawei Lai
A three-dimensional compressible Direct Numerical Simulation (DNS) analysis has been carried out for head-on quenching of a statistically planar stoichiometric methane-air flame by an isothermal inert wall. A multi-step chemical mechanism f...
N J Beavis,S S Ibrahim,W Malalasekera
N J Beavis
There is significant interest in the gasoline direct-injection engine due to its potential for improvements in fuel consumption but it still remains an area of active research due to a number of challenges including the effect of cycle-by-c...
A Computational Fluid Dynamic Investigation of Inhomogeneous Hydrogen Flame Acceleration and Transition to Detonation [0.03%]
非均匀氢气火焰加速及爆震过渡的计算流体动力学研究
Reza Khodadadi Azadboni,Ali Heidari,Jennifer X Wen
Reza Khodadadi Azadboni
Gas explosions in homogeneous reactive mixtures have been widely studied both experimentally and numerically. However, in practice and industrial applications, combustible mixtures are usually inhomogeneous and subject to vertical concentra...
Large Eddy Simulation of a Bluff Body Stabilised Premixed Flame Using Flamelets [0.03%]
采用火焰片模型的大棱体稳定预混火焰大涡模拟研究
James C Massey,Ivan Langella,Nedunchezhian Swaminathan
James C Massey
Large Eddy Simulations of an unconfined turbulent lean premixed flame, which is stabilised behind a bluff body, are conducted using unstrained flamelets as the sub-grid scale combustion closure. The statistics from the simulations are compa...
Premixed LPG + Air Combustion in a Bubbling FBC with Variable Content of Solid Particles in the Bubbles [0.03%]
含固颗粒的流化床中预混液化石油气-空气燃烧
Jerzy Baron,Witold Żukowski,Przemysław Migas
Jerzy Baron
This paper presents the results of studies on the combustion of gaseous LPG in a bubbling fluidized bed. Relationships between the temperature, the bed mass and the location of the combustion zone and the NOx and CO concentrations in exhaus...
A 5-D Implementation of FGM for the Large Eddy Simulation of a Stratified Swirled Flame with Heat Loss in a Gas Turbine Combustor [0.03%]
用于气流燃烧室层化旋流火焰的大涡模拟的5-D FGM实现方法研究
A Donini,R J M Bastiaans,J A van Oijen et al.
A Donini et al.
Numerical simulations are foreseen to provide a tremendous increase in gas-turbine burners efficiency in the near future. Modern developments in numerical schemes, turbulence models and the consistent increase of computing power allow Large...
An LES Turbulent Inflow Generator using A Recycling and Rescaling Method [0.03%]
一种基于循环和缩放的大涡模拟湍流进口边界条件生成方法
F Xiao,M Dianat,J J McGuirk
F Xiao
The present paper describes a recycling and rescaling method for generating turbulent inflow conditions for Large Eddy Simulation. The method is first validated by simulating a turbulent boundary layer and a turbulent mixing layer. It is de...
Flow Separation and Turbulence in Jet Pumps for Thermoacoustic Applications [0.03%]
喷射器中的流体分离和湍流对 thermoacoustic 应用的影响
Joris P Oosterhuis,Anton A Verbeek,Simon Bühler et al.
Joris P Oosterhuis et al.
The effect of flow separation and turbulence on the performance of a jet pump in oscillatory flows is investigated. A jet pump is a static device whose shape induces asymmetric hydrodynamic end effects when placed in an oscillatory flow. Th...
Assessment of LES Subgrid-scale Models and Investigation of Hydrodynamic Behaviour for an Axisymmetrical Bluff Body Flow [0.03%]
大型涡模拟亚网格模型的评估及轴对称钝体绕流水动力学行为的研究
Chin Yik Lee,Stewart Cant
Chin Yik Lee
This work is concerned with the investigation of fluid-mechanical behaviour and the performance of different subgrid-scale models for LES in the numerical prediction of a confined axisymmetrical bluff-body flow. Four subgrid-scale turbulenc...