We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Research on the dissipative characteristics of unsteady heat conduction for the one-dimensional sphere.
- Authors
Su, Chuan-Qi; Wang, Yong-Yan; Qin, Nan; Wang, Yan-Chun; Zhang, Guo-Dong
- Abstract
In this paper, the dissipative characteristics of unsteady heat conduction process for the one-dimensional sphere is studied. The dissipation function can be regarded as a Lyapunov function for the heat conduction system, which determines the evolution direction of the system and the stability of the steady state. By use of the vector formula, the relationship between the thermal potential and dissipation function is derived, and its similarity with the dissipation system of mechanical energy is shown. The expression of dissipation function is obtained when the boundary temperature is fixed. In addition, an example for optimization of heat conduction process is discussed based on the entransy dissipation extremum principle.
- Subjects
HEAT conduction; UNSTEADY flow; ONE-dimensional flow; LYAPUNOV functions; ENERGY dissipation
- Publication
Modern Physics Letters B, 2018, Vol 32, Issue 25, pN.PAG
- ISSN
0217-9849
- Publication type
Article
- DOI
10.1142/S0217984918502937