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

页码：221 / 245

页数：25