Competition between traveling fluid waves of left and right spiral vortices and their different amplitude combinations.
Competition between traveling fluid waves of left and right spiral vortices and their different amplitude combinations.
复制标题
左右螺旋涡流的行进流体波及其不同振幅组合之间的竞争。
DOI：
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发表时间：
2005
影响因子：
8.6
通讯作者：
C. Hoffmann
中科院分区：
文献类型：
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作者：
A. Pinter;M. Lücke;C. Hoffmann
通过完整的数值模拟和耦合振幅方程近似研究了反向旋转泰勒-库埃特系统中螺旋涡旋不同非线性组合结构的稳定性、分岔特性和时空行为。发现了具有连续变化的左螺旋模式和右螺旋模式内容的稳定的交叉螺旋结构。它们在纯螺旋的最初稳定的轴向反向传播的波状态与所谓的带状的轴向驻波之间提供了稳定性传递连接，所述带状波在距离涡流开始稍远的地方变得稳定。
Stability, bifurcation properties, and the spatiotemporal behavior of different nonlinear combination structures of spiral vortices in the counterrotating Taylor-Couette system are investigated by full numerical simulations and by coupled amplitude-equation approximations. Stable cross-spiral structures with continuously varying content of left- and right-spiral modes are found. They provide a stability transferring connection between the initially stable, axially counterpropagating wave states of pure spirals and the axially standing waves of so-called ribbons that become stable slightly farther away from the onset of vortex flow.