InterPore2018 New Orleans

Instability Analysis of Poiseuille Flow of Suspensions Overlying Porous Media

16 May 2018, 17:01

2m

New Orleans

Poster + 3 Minute Pitch GS 1: Fundamental theories of porous media Parallel 8-G

Speaker

Dr Indika Udagedara (Clarkson University)

Description

Department of Mechanical and Aeronautical Engineering, Clarkson University, Potsdam, New York, United States

An instability analysis of Poiseuille flow of concentrated suspensions in a channel is studied. The Poiseuille flow with two layers where both dilute and concentrated suspensions flow is overlaid by a soft porous media is considered for the analysis. The Brinkmann equation together with continuity equation is used to describe the fluid in the porous media. A suspension balance model is used to calculate the velocity profile of the suspensions flow at $0<Re<100$. The stability analysis is carried out via spectral model perturbation. By limiting the volume fraction, $\varphi$ ranging from $1\mathrm{\%}-5\mathrm{\%}$, the results are validated with the previous work, where pure Newtonian fluid is overlaid by the porous media.

Supported by ARO Grant#W911NF1770870