Lira Sérgio A, Miranda José A
Departamento de Física, Universidade Federal de Pernambuco, Recife, PE 50670-901 Brazil.
Phys Rev E Stat Nonlin Soft Matter Phys. 2012 Nov;86(5 Pt 2):056301. doi: 10.1103/PhysRevE.86.056301. Epub 2012 Nov 1.
We study the development of nonlinear traveling waves on the interface separating two viscous fluids flowing in parallel in a vertical Hele-Shaw cell. One of the fluids is a ferrofluid and a uniform magnetic field is applied in the plane of the cell, making an angle with the initially undisturbed interface. We employ a mode-coupling theory that predicts the possibility of controlling the speed of the waves by purely magnetic means. The influence of the tilted magnetic field on the waves shape profile and the establishment of stationary traveling wave structures are investigated.
我们研究了在垂直Hele-Shaw细胞中平行流动的两种粘性流体界面上非线性行波的发展。其中一种流体是铁磁流体，在细胞平面内施加均匀磁场，该磁场与初始未受干扰的界面成一定角度。我们采用一种模式耦合理论，该理论预测了通过纯磁手段控制波速的可能性。研究了倾斜磁场对波的形状轮廓的影响以及驻波行波结构的形成。
