【摘要】 基于三维N-S方程同时选用标准κ-ε湍流模型,采用通用流场分析软件fluent对液-固循环流化床的颗粒速度场和固含率的轴向分布情况进行了数值研究。结果表明流场的数值计算结果与文献中的试验值吻合较好,对进一步研究具有指导意义和实用价值。更多还原

【Abstract】 The particle velocity field and axial distribution of solid holdups in liquid-solid circulating fluidized beds have been simulated based on three-dimensional full Navier-Stokes(N-S) equations.Computational fluid dynamics(CFD) results implementing a Eulerian model with standard turbulence show that these type of simulations can give qualitatively reasonable agreement with experimental measurements.更多还原