Estimation of Nucleation Parameters from Continuous Cooling Droplet Experiments
| Autor: | Fraser P. Price, Fred Gornick |
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| Rok vydání: | 1967 |
| Předmět: | |
| Zdroj: | Journal of Applied Physics. 38:4182-4186 |
| ISSN: | 1089-7550 0021-8979 |
| DOI: | 10.1063/1.1709102 |
| Popis: | A theoretical and computational investigation has been made of the effect of temperature and of various energetic parameters upon the course of homogeneous nucleation in suspensions of droplets undergoing cooling at a constant rate. The applicable theory involves integrals, unsolvable in closed form, that were evaluated numerically. For a given size distribution of droplets, the plots of number‐fraction crystallized vs time have virtually identical shapes regardless of the cooling rate. The curves can be superposed by translation along the time axis. This superposability obtains regardless of the breadth of the size distribution. Thus, the superposability assumption tacitly invoked by early investigators in this field is justified. Furthermore, it was found that the integrations performed numerically gave, in the range of experimental interest, results within 3% of the analytical solution obtained by Burns and Turnbull by series expansion of the integrand.The pre‐exponential term in the expression for the... |
| Databáze: | OpenAIRE |
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