共查询到5条相似文献，搜索用时 0 毫秒
1.
O. G. Martynenko V. G. Leitsina V. V. Levdansky N. V. Pavlyukevich 《Drying Technology》2013,31(2):187-203
A new approach is developed for mass transfer by making use of the statistical model of a porous body based on the methods of the kinetic theory of gases. The collision integral in the one-dimensional kinetic equation is replaced by the effective “external” force, which is the result of the collective interaction of gas molecules with the motionless particles. Evaporation from a recessed boundary and gas filtration in a porous layer are considered. Simple expressions are obtained for the permeability coefficient and pressure jump (output resistance) at the gas-porous medium boundary as a function of the Kn number. Theoretical and experimental results are compared. 相似文献
2.
O. G. Martynenko V. G. Leitsina V. V. Levdansky N. V. Pavlyukevich 《Drying Technology》1987,5(2):187-203
A new approach is developed for mass transfer by making use of the statistical model of a porous body based on the methods of the kinetic theory of gases. The collision integral in the one-dimensional kinetic equation is replaced by the effective “external” force, which is the result of the collective interaction of gas molecules with the motionless particles. Evaporation from a recessed boundary and gas filtration in a porous layer are considered. Simple expressions are obtained for the permeability coefficient and pressure jump (output resistance) at the gas-porous medium boundary as a function of the Kn number. Theoretical and experimental results are compared. 相似文献
3.
4.
运用已建立的颗粒动力学模型并耦合催化裂化反应的十三集总动力学模型,建立了催化裂提升管反应器内反应油气和催化剂颗粒的传质,反应的数学模,结合工业提升管的操作参数,模拟预测了速度场,温度场和组分分布。 相似文献
5.
基于集流型涡轮流量计与放射性低能源密度—持水率计在大庆生产测井研究所油、气、水三相流动环路中的实验响应结果，首先考察了用于气液两相流中涡轮流量计的Ａｙａ物理模型，进而提出了经过校正后用于确定油、气、水三相流总流量的测量模型，用此模型预测三相流总流量与流动环标定数据对比后其误差小于５％，满足了石油工业应用要求 相似文献