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Analysis of Heat Transfer for Laminar Flow in Concentric Pipes
Concentric pipe heat transfer enhancement non-staggered grid finite volume
2009/10/14
In this study, laminar flow and heat transfer in a circular pipe with an inner tube inserted was investigated numerically. For this reason, two-dimensional Navier-Stokes, continuity and energy equatio...
LAMINAR FULLY DEVELOPED MIXED CONVECTION WITH VISCOUS DISSIPATION IN A UNIFORMLY HEATED VERTICAL DOUBLE-PASSAGE CHANNEL
convection channel double-passage
2009/10/14
Fully developed laminar mixed convection has been investigated numerically in a vertical double-passage channel by taking into account the effect of viscous dissipation. The channel is divided into tw...
PERSISTENCE OF THE LAMINAR REGIME IN A FLAT PLATE BOUNDARY LAYER AT VERY HIGH REYNOLDS NUMBER
transition flow control boundary layer theory
2009/10/13
Starting from the Navier-Stokes and the continuity equations of a viscous incompressible fluid, a statistical theory is developed for the prediction of transition and break down to turbulence in a lam...
ON THE EVOLUTION OF LAMINAR TO TURBULENT TRANSITION AND BREAKDOWN TO TURBULENCE
transition to turbulence two-point correlations closure problem
2009/10/13
Starting from the basic conservation laws of fluid flow, we investigated transition and breakdown to turbulence of a laminar flat plate boundary layer exposed to small, statistically stationary, two-c...
煤层气—空气预混层流火焰特性试验（Experiment on the Premixed Laminar Flames of Coal Bed Methane-air Mixtures）
煤层气 预混层流火焰 定容燃烧弹
2009/9/2
利用高速摄影技术，在定容燃烧弹中研究了不同燃空当量比、初始压力和煤层气中CH4浓度对煤层气燃烧火焰传播速度和层流燃烧速度的影响。研究结果表明：在燃空当量比为1.1时层流燃烧速度最大；燃烧开始时，随着初始混合压力的增加，最大燃烧压力明显增加，火焰传播速度和层流燃烧速度减小，火焰半径大于40mm后，层流火焰传播速度和燃烧速度又随初始压力的增加而增大；随着煤层气中CH4浓度的增加，层流燃烧速度和最高燃烧...