Description of liquid-gas phase transition in the frame of continuum mechanics

被引：3
|
作者：
Vilchevskaya, Elena N. [1 ,2 ]
Ivanova, Elena A. [1 ,2 ]
Altenbach, Holm [3 ]
机构：
[1] Russian Acad Sci, Inst Problems Mech Engn, St Petersburg 199178, Russia
[2] St Petersburg State Polytech Univ SPbSPU, Dept Theoret Mech, St Petersburg 195251, Russia
[3] Univ Magdeburg, Lehrstuhl Tech Mech, Inst Mech, Fak Maschinenbau, D-39106 Magdeburg, Germany
来源：
CONTINUUM MECHANICS AND THERMODYNAMICS | 2014年 / 26卷 / 02期
关键词：
Liquid-gas phase transition; Cluster; Chemical potential; Source term; NUCLEATION; EQUATION; GROWTH; BUBBLE; ENERGY;
D O I：
10.1007/s00161-013-0298-5
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A new method of describing the liquid-gas phase transition is presented. It is assumed that the phase transition is characterized by a significant change of the particle density distribution as a result of energy supply at the boiling point that leads to structural changes but not to heating. Structural changes are described by an additional state characteristics of the system-the distribution density of the particles which is presented by an independent balance equation. The mathematical treatment is based on a special form of the internal energy and a source term in the particle balance equation. The presented method allows to model continua which have different specific heat capacities in liquid and in gas state.
引用
收藏
页码：221 / 245
页数：25
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