Numerical investigation on how heat flux avalanche jams trigger the staircase pattern formation
Numerical investigation on how heat flux avalanche jams trigger the staircase pattern formation
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DOI：
10.1063/5.0053919
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发表时间：
2021-08
影响因子：
2.2
通讯作者：
Y. Kosuga;D. Koga;M. Sasaki
中科院分区：
文献类型：
--
作者：
Y. Kosuga;D. Koga;M. Sasaki
计算结果描述了热通量雪崩堵塞导致的阶梯图案的发展。基于数值模拟分析了热流雪崩堵塞形成的非线性阶段。超扩散性和剪切反馈都对堵塞的增长提供了相关的饱和效应。还讨论了强迫的作用。类比交通动力学中多重拥堵的形成，论证了温度多重波纹层的形成。结果表明，可以通过改变加热功率的强度来控制楼梯结构。
Computational results are presented to describe the development of the staircase pattern as a result of the jam of heat flux avalanches. The nonlinear stage of the heat flux avalanche jam formation is analyzed based on the numerical simulations. Both hyperdiffusivity and shearing feedback provide a relevant saturation effect on the jam growth. The role of forcing is also discussed. Drawing analogy from the multiple jam formation in traffic dynamics, the formation of multiple corrugated layers of the temperature is demonstrated. It is shown that the staircase structure may be controlled by changing the strength of heating power.