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Turbulent flow properties of large-scale vortex systems
gridfree turbulence vortex methods
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2016/5/18
Large-scale computations of dynamically interacting vortex tubes forming filaments are performed with a view toward investigating their relationship to turbulent fluid flow. It is shown that the stati...
MATHEMATICAL MODEL FOR FRONTOGENESIS IN TURBULENT FLOW THROUGH POROUS MEDIA
Turbulent flow Heterogeneity Frontogenesis Richardson number Drag coefficient Eddy diffusivity
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2015/2/4
The effects of horizontal density gradient and nonlinear drag offered by the solid particles on turbulent flow through
geological media are analysed analytically in the presence of a vertical gravita...
Vortex Shedding From Circular and Rectangular Cylinders Placed Horizontally in a Turbulent Flow
Vortex- Shedding Blu Body Wake Flow Blu Body Aerodynamic
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2009/10/14
In this study, vortex sheddings from cylinders of circular and rectangular cross-sections of nite length which spanned the mid-height of the test section of a horizontal wind tunnel, were determined ...
离心泵叶轮固液两相流动及泵外特性数值分析（Numerical Simulation of Solid-liquid Two-phase Turbulent Flow in Impeller Channel and Pump Characteristics Analysis）
离心泵 叶轮 固液两相流 数值模拟
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2010/4/1
基于N-S方程和标准k-ε湍流模型，采用SIMPLEC法，对离心叶轮三维固液两相流场进行了耦合计算，得到了固相(颗粒)不同粒径、不同体积浓度不同密度以及不同流量时的固相(颗粒)浓度分布，并研究了外特性的变化规律。模拟结果表明，颗粒本身的性质-密度、粒径对颗粒的分布及运动规律影响较大，密度、粒径越大的颗粒在惯性力作用下易偏向工作面；颗粒体积浓度对颗粒的分布略有影响；泵在非设计工况下运行时，相对进口液...
Numerical Simulation on Gas-Solid Two-Phase Turbulent Flow in FCC Riser Reactors (I) Turbulent Gas-Solid Flow-Reaction Model
riser reactor turbulent flow gas-solid flow
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2009/3/30
Gas-solid two-phase turbulent flows, mass transfer, heat transfer and catalytic cracking reactions are known to exert interrelated influences in commercial fluid catalytic cracking(FCC) riser reactor...
Numerical Simulation on Gas-Solid Two-Phase Turbulent Flow in FCC Riser Reactors (II) Numerical Simulation on the Gas-Solid Two-Phase Turbulent Flow
commercial riser reactor flow-reaction model turbulent flow
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2009/3/26
Numerical simulation on the flow, heat transfer and cracking reactions in commercial fluid catalytic cracking(FCC)riser reactors were carried out employingthe developed turbulent gas-solid two-phase ...