An experimental and numerical investigation of buoyancy‐driven two‐phase displacement

D. E. Weidner, L. W. Schwartz
1991 Physics of Fluids A Fluid Dynamics  
The motion of the interface between two fluids in a HeleAhaw cell for the case of a cell oriented with the plates vertical is considered. The bottom edge of the cell may be at any angle to the horizontal and only density differences between the two fluids drive the flow. A boundary integral technique is employed to numerically predict the motion of the interface and numerical simulations are compared with experimental results. Unlike pressure-driven Hele-Shaw flow, where the simplified
more » ... simplified equations predict only qualitative features of the displacement profiles, here the agreement is quite good, in general. Theory predicts and experiment confirms that the displacement profiles are not a function of fluid viscosity.
doi:10.1063/1.858201 fatcat:mz3l3dj5jvah3jdhmpy324nvyi