تأثير درجة الحرارة و نسبة الإشباع على قيم نصف القطر الحرج و الطاقة الحرة للسطح لقطيرة الغيمة

الملخص EN

The values of the critical radius were calculated for different temperatures, which simulate the temperatures of the warm clouds, and for different saturation ratios.

The results showed that the critical radius is inversely proportional with temperature.

Also, the results indicate that the critical radius decreases with the increase of the saturation ratio.

This means that when the saturation ratio is large, large numbers of clouds droplets have a chance to grow and vice versa.

The change in free energy function was also calculated because it has an important effect of the growth or evaporation rates of the droplet.

The results illustrated that as the droplet grows larger, the smaller amount of energy is required to overcome the surface tension.

The free energy in the case of saturation is relatively smaller than the energy of the super saturation.

The aim of this research is to study the processes of cloud formation and growth by water diffusion and the effect of temperature and saturation ration on the critical radius and free energy for the droplet surface.

The critical radius is considered as the boundary between the growth and decay of the droplet.

The value of the critical radius depends on the temperature and the saturation ratio, and the relation.

The critical radius is inversely proportional with both temperature and saturation ratio.

This research could be applied in the experimental work concerning cloud physics using the cooling chamber .