Combined Effect of Small Curvature and Variable Friction on Temporal Instability of Shallow Mixing Layers

Proceedings of the 18th International Conference on Circuits, Systems, Communications and Computers (CSCC 2014) 2014
Ilmārs Iltiņš, Marija Iltiņa, Andrejs Koliškins

Temporal stability analysis of shallow mixing layers is performed in the present paper. It is assumed that flow is slightly curved along the longitudinal coordinate. In addition, friction force is assumed to be varied in the transverse direction. The corresponding linear stability problem is solved by a collocation method. Marginal stability curves are obtained for different values of the parameters of the problem. Combined influence of curvature and variable friction on the stability boundary is investigated. It is shown that both curvature and variable friction stabilize the flow.

Keywords
Linear stability analysis, shallow mixing layers, friction coefficient, curvature

Iltiņš, I., Iltiņa, M., Koliškins, A. Combined Effect of Small Curvature and Variable Friction on Temporal Instability of Shallow Mixing Layers. In: Proceedings of the 18th International Conference on Circuits, Systems, Communications and Computers (CSCC 2014), Greece, Thera, 17-21 July, 2014. Thera: WSEAS Press, 2014, pp.96-99.

Publication language
English (en)