Linear stability of a liquid flow through a poroelastic channel etc15 Tracking Number 402Presentation: Session: Instability and Transition 5 Room: Room A Session start: 10:30 Thu 27 Aug 2015 Arghya Samanta arghyar@gmail.com Affifliation: Linné Flow Centre, KTH Mechanics, Stockholm, Swedne Shervin Bagheri shervin@mech.kth.se Affifliation: Linné Flow Centre, KTH Mechanics, Stockholm, Swedne Luca Brandt luca@mech.kth.se Affifliation: Linné Flow Centre, KTH Mechanics, Stockholm, Swedne Topics: - Instability and transition Abstract: A liquid flow through a channel is studied based on the Orr-Sommerfeld eigenvalue problem, where the lower wall of the channel is occupied by the saturated poroelastic medium. The linear stability analysis is investigated in detail for arbitrary value of the wavenumber. The eigenvalues are computed numerically by using the Chebyshev spectral collocation method. The effect of physical parameters, for instance, permeability, elasticity as well as their combined effect on the unstable modes are examined. |