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关于沸腾,各文献定义有异,但反映的实质是相同的。由于沸腾主要特征是液体内汽泡的形成,因此对汽泡行为的研究是了解沸腾的基础,有助于认识沸腾的本质。在沸腾过程中,液体的对流和汽泡的扰动是必不可少的。沸腾机理牵涉因素很多,关系繁复,所以在研究方法上,通常多是在大量实验基础上,作量纲分析,找一些实用公式。要使沸腾理论的研究上升到解析阶段,尚需做很多工作。故本文仅就大容器简化模型的沸腾进行分析,以期能得到简明的阐述。
With regard to boiling, the definitions of the various documents are different, but the essence of the reflection is the same. Since the main feature of boiling is the formation of bubbles in the liquid, the study of bubble behavior is the basis for understanding boiling and helps to understand the nature of boiling. During the boiling process, the convection of liquids and the perturbation of bubbles are indispensable. Boiling mechanism involves many factors, the relationship is complicated, so in the research methods, usually based on a large number of experiments, for dimensional analysis, find some practical formula. There is still a lot of work to do to bring the study of boiling theory to the analytical stage. Therefore, this paper only analyzes the boiling of large container simplified model, in order to get concise exposition.