高粘性流动的非对称模型
An asymmetry model for the highly viscous flow
摘要:
剪切流的局部结构重排方面建模。大多数这些重排是强烈不对称的,因为嵌入矩阵往往是弹性适应的初始状态,并有一个显着的弹性失配方面的最终状态。当接近麦克斯韦时间时,非对称性变得依赖于时间,从而使系统能够离开初始状态。该模型解释了不同的局部结构重排之间的相互作用在主峰的Kohlrausch行为。
英文摘要:
The shear flow is modeled in terms of local structural rearrangements. Most of these rearrangements are strongly asymmetric, because the embedding matrix tends to be elastically adapted to the initial state and to have a marked elastic misfit with regard to the final state. As one approaches the Maxwell time, the asymmetry becomes time-dependent, thus enabling the system to leave the initial state. The model explains the Kohlrausch behavior at the main peak in terms of the interaction between different local structural rearrangements.
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