一级相变动力学中的热导率
Thermal conductivity in dynamics of first-order phase transition
摘要：
研究了热导率对一级相变动力学的影响。的等温和绝热旋节区域的差异的重要后果进行了讨论。我们表明，在流体动力学计算在非零热导率，$κ\neq 0$，发病的失稳不稳定性发生时，系统的轨迹穿过等温失稳线。只有对于$κ= 0$，它发生在绝热旋节线的交叉处。因此，理想流体力学不适合于一阶相变的适当描述。
英文摘要：
Effects of thermal conductivity on the dynamics of first-order phase transitions are studied. Important consequences of a difference of the isothermal and adiabatic spinodal regions are discussed. We demonstrate that in hydrodynamical calculations at non-zero thermal conductivity, $κ\neq 0$, onset of the spinodal instability occurs, when the system trajectory crosses the isothermal spinodal line. Only for $κ= 0$ it occurs at a cross of the adiabatic spinodal line. Therefore ideal hydrodynamics is not suited for an appropriate description of first-order phase transitions.
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