Stability of fine water droplet clouds |
| |
Authors: | Yasuo Kousaka Kikuo Okuyama Kenji Sumi Tetsuo Yoshida |
| |
Affiliation: | Department of Chemical Engineering, University of Osaka Prefecture, Sakai, Japan |
| |
Abstract: | The rate of evaporation of monodisperse water droplets was first evaluated by solving numerically the modified Maxwell equation, assuming the cellular model for a droplet clouds. The results are discussed in comparison with those for a single isolated droplet, which can be obtained analytically. The critical conditions for the droplet cloud to be stable are then evaluated as a function of droplet number concentration, droplet size and initial conditions of the surrounding air. Secondly, the equilibrated system, where a water droplet cloud is steadily mixed with unsaturated air, was analysed on the basis of enthalpy and material balance of the system to evaluate the total volume change of the droplets. Some of these analyses were verified by experiment, using an ultramicroscopic technique which is useful for droplet size analysis. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|