By using the impulse response method, the axial dispersion coefficient of the continuous phase and the dispersed phase were measured respectively, and the experimental ranges of those parameters are following, dispe.
实验以水为连续相,煤油为分散相,以空气为搅拌动力源,采用脉冲应答技术,分别测定了连续相和分散相的轴向扩散系数,并讨论了连续相流速、分散相流速、气相流速及在塔内装入静态混合器时对塔内轴向混合性质的影响,得到了在操作范围内的经验关联式。
Investigation on the relationship of axial dispersion coefficient(E\-c) and the operating conditions,such as the rotor speed(N\-R) and the flow rate(U\-d & U\-c),was carried out with the method of pulse input of tracer in CTRDC(rotating disk contactor with closed turbine).
用脉冲示踪法研究了闭式涡轮转盘塔(CTRDC)中连续相的轴向扩散系数Ec与转速NR、通量V等操作条件的关系,经回归分析得到Ec的计算关联式,并且与转盘塔(RDC)的研究结果作了比较。
33 r/s,the results showed that the axial diffusion coefficient increased with the increase of liquid velocity and gas velocity,and first increased then decreased with the increase of the stirring speed while the gas hold-up increased with the increse of stirring speed,liquid velocity and gas velocity increased.
33 r/s条件下,轴向扩散系数随着液速和气速的增加而增大,随着搅拌桨转速的增加先减小后增大;平均气含率随着液速、气速及搅拌桨转速的增加而增大。
As a result,a generalized correlations of the gas dispersion coefficient is obtained.
实验结果表明湍动床存在着明显的轴向返混,轴向扩散系数与气速有关。
Peclet number(Pe) and mixing time(tm) represent axial dispersion behavior and mixing behavior,respectively.
用混合时间表征混合特性,用Peclet操作准数表征轴向扩散特性。
Peclet number(Pe) is used to represent the axial dispersion.
用Pec let操作准数表征轴向扩散特性。
The axial dispersion in chromatography models was discussed with vector method and the effect of diffusion on the bulk flow flux with its partial quantity form was pointed too.
用矢量方法讨论了色谱模型中的轴向扩散项,指出轴向扩散项是扩散通量以分量的形式在主体流动通量上的页献。
Determination of longitudinal dispersion coefficient of rivers through laboratory experiment;
室内模拟试验确定河流纵向扩散系数研究
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