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首页> 外文期刊>Physica, A. Statistical mechanics and its applications >Dual-phase-lag transfer equations and entropy behavior in relaxational hydrodynamics
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Dual-phase-lag transfer equations and entropy behavior in relaxational hydrodynamics

机译：松弛流体力学中的双相滞后传递方程和熵行为

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摘要

Extended thermodynamics of irreversible processes is developed; based on two postulates by which additional variables of the entropy density are dissipative fluxes and material time derivatives of the ordinary thermodynamic variables. Within these theories a more general approximation of entropy production is obtained. As a consequence of the proposed formalism, the constitutive dual-phase-lag equations, as well as equations of the conventional version of extended irreversible thermodynamics are obtained. The behavior of the entropy during oscillatory approach to equilibrium is considered. The proposed theory leads to a strictly monotonic dependency of the entropy on time.
机译：发展了不可逆过程的扩展热力学;基于两个假设，熵密度的其他变量是普通热力学变量的耗散通量和材料时间导数。在这些理论中，可以获得熵产生的更一般的近似。由于提出的形式主义，获得了本构双相滞后方程以及扩展不可逆热力学常规形式的方程。考虑了在达到平衡的振荡方法中熵的行为。所提出的理论导致熵对时间的严格单调依赖性。

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