Scientific problems of powder particles packing;
粉末颗粒堆积的科学问题
Considering influence of particle volume fraction on two phase flow,a mathematical model describing the behavior of gas-particle flow passing through convergent-divergent nozzle is developed.
考虑粉粒体积分率对气粉两相流的影响建立了收缩-扩张喷嘴中气粉流的数学模型,这一模型由九个未知量U_p,T_p,U-g,T_g,α,P,ρ_g,M和A的一阶常微分方程组,以及相应的入口边界条件所构成。
According to authors mathematical model describing the behavior of the gas-particle now passing through a Layal nozzle and using Weber distribution as the distribution of particle size,a numerical calculation for different particle volume fractions was carried out.
根据拉伐尔喷嘴中气粉流的数学模型，并采用威布尔分布作为植径分布，在不同粉粒体积分率下，对喷嘴中气粉流的行为作了数值计算。
Considering the influences of the Particle volume fraction and the distribution of particle size on the flow.
考虑粉粒体积分率及粒径分布对流动的影响。