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Research interests include filtration, gas-liquid and liquid-liquid coalescence, and nanofibers. We have applied volume-averaged continuum theory for multiphase systems to model filters and flows through porous materials. We conduct experiments to provide data for model verification and apply research results to specific systems.
Other research interests include depth filtration, shale shakers, cross-flow filtration, electrorheological fluid flow through packed beds, droplet motion on fibers and fiber mats, application of nanofibers in filter media, ceramic fibers for high-temperature applications, fiber orientation in filter media, non-Newtonian flows in porous media, and catalytic filter media.
Fluid Dynamics in Porous Media
Prior research had explored the dynamics of fluid flow through porous media, with a particular focus on applications in filtration and separation technologies. We developed models to simulate coupled free-channel and porous media flows, the experimental investigation of flow behavior in various porous structures, and the optimization of coalescence and filtration processes. This also included research where we employed electrowetting and electrospinning to manipulate fluid behavior and enhance the performance of porous materials.
Selected References
Chase, G., Bandekar, A., & Gadhave, A. (2023). Electrowetting coalescence device with porous layers. U.S. Patent No. 11,819,782. Washington, DC: U.S. Patent and Trademark Office.
Li, Y., Zhang, X., Yang, X., & Chase, G. G. (2017). Finite element model and experimental comparison of coupled free-channel-porous-media flow. Journal of Coupled Systems and Multiscale Dynamics, 5(1), 51-61.
Varabhas, J. S., Chase, G. G., & Reneker, D. H. (2008). Electrospun nanofibers from a porous hollow tube. Polymer, 49(19), 4226-4229.
Chase, G. G., & Dachavijit, P. (2008). An experimental study of electrorheological fluid flow through a packed bed of glass beads. Transport in porous media, 72, 25-35.
Vasudevan, G., Hariharan, S. I., & Chase, G. G. (2005). Modeling the loading stage coalescence process in fibrous media. Journal of porous media, 8(3).
Patel, H. R., Hariharan, S. I., & Chase, G. G. (2002). Evaluation of steady flow through a six-lobe sand cartridge filter by the boundary perturbation method. Journal of Porous Media, 5(1).
Tosun, I., Willis, M. S., Desai, F., & Chase, G. G. (1995). Analysis of drag and particulate stress in porous media flows. Chemical engineering science, 50(12), 1961-1969.
Chase, G. G., & Soma, J. (1993). Liquid Flows Through Porous Media with Porosity Gradients. FLUID PARTICLE SEPARATION JOURNAL, 6, 145-145.
Electrospinning and Nanofibers
Selected References
Filtration and (Electrowetting) Coalescence
Selected References
Drop Motion on Fibers and in Fibrous Media
Selected References
Catalysis and Photocatalysis
Selected References
Shale Shaker
Selected References
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