乱流条件において空隙率変化をともなう凝集体の生成過程に関する研究
凝集体の生成過程に関する基礎的研究 (第3報)
1981 年 97 巻 1123 号 p. 945-949
詳細
1981 年 97 巻 1123 号 p. 945-949
The effects of floc porosity change under turbulent motion during the process of their formation are examined using numerical solutions of Population Balance equation.
According to the results of numerical experiments,
1) When flocs have higher porosity, larger flocs form in shorter time during coagulation process. The size distribution curve of flocs is seen apparently different from that of Droplet Model.
2) When floc porosity is constant or continuously changes under coagulation process. the size distribution curves of flocs can be represented by straight line in Rosin-Rammler Diagram. And the gradient of the line becomes smaller in the course of coagulation. This phenomena is one of the peculiarities of Turbulent coagulation. The gradient of the line does not change in the course of coagulation.
3) If floc porosity is changeable during coagulation, the self-preserving spectra can be obtained only when one uses the new similarity variables based on the weight of floc consituents.
