Nonequilibrium fluctuations in thermal- diffusion and free- diffusion processes

A. Vailati; M. Giglio

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Nonequilibrium fluctuations in thermal- diffusion and free- diffusion processes

机译：热扩散和自由扩散过程中的非平衡波动

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We use very low-angle static light scattering to characterize the fluctuations in a binary liquid mix- ture during time-dependent thermal-diffusion and free-diffusion processes. Our data show that the spontaneous fluctuations grow many orders of am- gnitude larger than the equilibrium ones, and their size is only limited by the presence of gravity. We show that our results can be fully interpreted by means of an extension of fluctuating hydrodynamics to time- dependent diffusion processes.

机译：我们使用非常小的角度静态光散射来描述在时间相关的热扩散和自由扩散过程中二元液体混合物的波动。我们的数据表明，自发波动的幅度比平衡波动大许多数量级，其大小仅受重力的存在限制。我们表明，通过将波动流体动力学扩展到与时间有关的扩散过程，可以完全解释我们的结果。

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《Entropie》 |1999年第217期|p.33-37|共5页
作者
A. Vailati; M. Giglio;
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正文语种 eng
中图分类热力工程、热机;
关键词
energetics; time-dependent thermal diffusion and free diffusion processes; non equilibrium fluctuations;

机译：能量学与时间有关的热扩散和自由扩散过程;非平衡波动;

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Nonequilibrium fluctuations in thermal- diffusion and free- diffusion processes

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