The Effect of Asymmetry of Base Flow Profile on the Linear Stability of Shallow Mixing Layers

Non-Linear Systems and Wavelet Analysis: the 10th WSEAS International Conference on Wavelet Analysis and Multirate Systems (WAMUS'10). The 9th WSEAS International Conference on Non-Linear Analysis, Non-Linear Systems and Chaos (NOLASC '10) 2010
Irīna Eglīte, Andrejs Koliškins

Linear stability of shallow mixing layers is analyzed in the present paper. The mixing layer is formed at the interface between a porous medium and an open channel flow (such a flow can be considered as a model for flows adjacent to terrestrial or aquatic vegetation). Experimental data showed that the base flow velocity profile is asymmetric with respect to the transverse coordinate. The effect of asymmetry of the base flow profile on linear stability characteristics of the flow is investigated. It is shown that asymmetry of the base flow results in more stable flow.

Keywords
shallow mixing layer, linear stability, asymmetric base flow profile

Eglīte, I., Koliškins, A. The Effect of Asymmetry of Base Flow Profile on the Linear Stability of Shallow Mixing Layers. In: Non-Linear Systems and Wavelet Analysis: the 10th WSEAS International Conference on Wavelet Analysis and Multirate Systems (WAMUS'10). The 9th WSEAS International Conference on Non-Linear Analysis, Non-Linear Systems and Chaos (NOLASC '10), Tunisia, Kantaoui, Sousse, 3-6 May, 2010. Sousse: WSEAS Press, 2010, pp.109-112. ISBN 978-960-474-189-2.

Publication language
English (en)