Temporal Fluctuations in Buckley-Leverett Flow

In this project we studied the influence of temporal fluctuations on the spreading of a multiphase flow (assuming  Buckley-Leveret conditions, i.e. no influence of capillarity). Unlike the passive scalar case we find that temporal  fluctuations do not enhance spreading.

Fluctuations

No Fluctuations

Buoyancy in Heterogeneous Buckley-Leverett Flow (Current)

In this project we studied the influence of buoyancy on the spreading of a multiphase flow. Unlike the passive  scalar case we find that temporal fluctuations do not enhance spreading. Below we have sample images from  three cases - no buoyancy (left), stable buoyancy (middle), unstable buoyancy (right).

Relevant Papers

D Bolster, I Neuweiler, M Dentz, J Carrera
The Impact of Buoyancy on Front Spreading in Heterogeneous Porous Media in Two-Phase Immiscible Flow
Water Resources Research, 47, W02508, doi:10.1029/2010WR009399, 2011

V Vilarrasa, D Bolster, S Olivella, J Carrera
Coupled Hydromechanical Modeling of CO2 Sequestration in Deep Saline Aquifers
International Journal of Greenhouse Gas Control, Vol 4(6), P 910-919

V Vilarrasa, D Bolster, M Dentz, S Olivella, J Carrera
Effects of CO2 Compressibility on CO2 Storage in Deep Saline Aquifers
Transport in Porous Media, DOI: 10.1007/s11242-010-9582-z, Vol 85(2), P 619-639

Bolster D., Dentz M., Carrera J (2009)
"Effective Two-Phase flow in heterogeneous media under temporal pressure fluctuations"
Water Resources Research, 45, W05408, doi:10.1029/2008WR007460.

A. M. Tartakovsky, D. Bolster, and D. M. Tartakovsky (2009)
"Identification of Layered Structures of the Vadose Zone from Electrical Resistivity
Surveys"
Vadose Journal , 7, 1253