Solutions for hydrodynamics of 5- and 10-fold symmetry quasicrystals

Solutions for hydrodynamics of 5- and 10-fold symmetry quasicrystals
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5 重和 10 重对称准晶体的流体动力学解决方案

DOI:
10.1007/s10483-016-2133-9
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发表时间:
2016-10
期刊:
Applied Mathematics and Mechanics (English Edition )
影响因子:
--
通讯作者:
范天佑
范天佑
中科院分区:
其他
文献类型:
--
作者:
范天佑

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本文对五、十次准晶流体力学的时空解进行了全面的分析。研究了声子的波传播、相子的扩散以及声子场与相子场之间的耦合行为。综合讨论了合金准晶各流体力学场变量的物理时空变化。计算样本简单,便于检验计算结果,并提供了一种易于实验检验的可能性。质量密度、粘滞速度、声子位移、相子位移、声子应力、相子应力、粘滞应力及其时空变化的定量结果有助于我们理解固体准晶在流体力学条件下(长波低频)的运动。本文的分析方法适用于八边形和十二边形准晶,并可推广到其它二维准晶和三维二十面体准晶。文中还讨论了计算结果所揭示的一些问题。
This study carries out a complete analysis of time-space solution of hydrodynamics of pentagonal/decagonal quasicrystals. The behaviors of wave propagation for phonons and diffusion for phasons and coupling between phonon-phason fields are explored explicitly. Comprehensive discussion on physical time-space variations of all hydrodynamic field variables of the alloy quasicrystals is given. The computational specimen is simple, convenient in testing computational results, and provides a possibility that is easy to test experimentally. The quantitative results of mass density, viscosity velocities, phonon displacements, phason displacements, phonon stresses, phason stresses, viscosity stresses, and their time-space variations help us understand the motion of solid quasicrystals in a hydrodynamic condition (long-wavelength and low-frequency). The analysis presented in this paper can be used for octagonal and dodecagonal quasicrystals and is easily extended to other two-dimensional quasicrystals and three-dimensional icosahedral quasicrystals. Some problems explored by the computational results are also discussed.
DOI: 10.1007/s10483-007-0808-y
发表时间: 2007-08
影响因子: 4.4
作者:
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期刊: PHYSICAL REVIEW B
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可能的 5 重和 10 重对称性软物质准晶体和流体动力学
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发表时间: 2015-07
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