An influence of a spatial temperature modulation of the heat release/consumption at the interface on nonlinear convective flows in the 47v2 silicone oil - water system, has been investigated. Two types of boundary conditions on lateral walls: periodic boundary conditions corresponding to laterally infinite two-layer system and rigid heat-insulated lateral walls corresponding to the closed cavity, have been considered. It is shown that the spatial modulation can change the sequence of bifurcations and lead to the appearance of new oscillatory regimes. Specifically, pulsating traveling waves changing the direction of propagation, as well as regimes corresponding to period doubling, period-four and period-eight bifurcations, have been obtained.

中文翻译：

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界面处有热量释放的两层系统中的非线性波

研究了界面温度下热量释放/消耗的空间温度调制对47v2硅油-水系统中非线性对流流动的影响。已经考虑了两种在侧壁上的边界条件：对应于横向无限两层系统的周期性边界条件和对应于封闭空腔的刚性隔热侧壁。结果表明，空间调制可以改变分叉的顺序，并导致出现新的振荡状态。具体地，已经获得了改变传播方向的脉动行波，以及与周期倍增，周期四和周期八分叉相对应的方案。