「熱極性物質」の概念と熱力学第1および第2法則

概要

論文の詳細を見る
The Cosserat continuum theory or theory of polar materials is intended to reflect the effects of microscopic structure in the macroscopic behavior of materials. These theories are intimately related with the notion of nonlocality at a single point. In contrast with the mechanical nonlocal effects in these theories, in this paper, thermodynamical nonlocality is taken into consideration. The entropy production rate presented here is affected by the fluctuations of temperature, radiation and heat fulx vecter, which do not appear in the condition of local equilibrium. By averaging the microscopic quantities, macroscopic variables which express the nonequilibrium condition can be obtained. The first law of thermodynamics in this study has the same form as for a thermal simple body. However, the form of the second law is modified by the above fluctuations and the secondary moment of microvolume. Through these equations, we may expect to construct constitutive equations which may include the effects of strong nonequilibrium conditions.
一般社団法人日本機械学会の論文
1991-10-25