Dr. Yaniv Edery
Address: Rabin Building, Room 355,
Civil and Environmental Engineering,
Technion, Israel Institute of Technology, Haifa, 32000, Israel
Yaniv did BSc in physics and oceanography in the Hebrew University, MSc and Ph.D. in the Weizmann Institute, and postdoc in the soft matter physics lab at Harvard University. Currently, Yaniv is heading the porous media visualization (PMV) lab in the Technion, where investigates may aspects of flow, reaction, and deformation in porous media. To study that in the PMV lab we replace the porous soil and rock with an equivalent transparent porous material developed in the lab. The transparent porous material allows direct quantification of the following processes occurring in soil and rock: transport in porous media, reaction rates of chemicals during transport, displacement of resident phase in the porous media by a miscible or immiscible phase, and deformation of the porous material during the transport. Advanced microscopy methods do the quantification and in-house using light-sheet microscopy coupled with an ultra-high-speed camera with 105 frames per second. This unique experimental setup gives access to the hidden dynamics of real soil physical processes.
Evgeny studies reactive transport in heterogeneous porous media by means of numerical simulations. He has completed M.Sc in Mechanical Eng. from Tel Aviv Uni. and B.Sc in Aerospace Eng. from Technion, specializing in Computational Mechanics. His aim is to apply his previous experience to the of field Earth Sciences, to understand better and contribute to the subject of ground water flow and contaminant transport in geological formations . Besides science, his main interest is playing, composing and performing music, please check out falkorensemble.com!
Pressurized fluid injection into underground rocks occurs in applications like carbon sequestration, enhanced geothermal energy production, wastewater disposal and hydraulic fracturing, and may lead to human-induced earthquakes and surface uplift. The fluid injection raises the pore pressure within the porous rocks, while deforming them, yet this coupling is not usually limited to postmortem inspection and cannot capture the complete deformation process in time and space.
We investigate injection-induced deformation of a unique rock-like medium mimicking the deformation of sandstone, yet under low pressure. We create this unique medium by sintering plastic particles at the size of sand grains. We incorporate and solidify about 1% fluorescent particles within the sample to track the local deformation. The tracking is achieved by saturating the sample with oil (immersion liquid) that has similar optical properties as the plastic particles, transforming the artificial rock from opaque to transparent, apart from the fluorescent particles that fluoresce. We then inject the same oil at higher and higher pressure through the artificial rock while measuring the injection pressure and capturing the fluorescent particles movement by using a high-resolution fast camera. Because the fluorescent microspheres are part of the material structure their movement represent the internal deformation of the medium.
Debanik is a PhD student, working on the microbial biophysics in multiphase pore networks, combining simulation with experiments. He received MSc at University of Alberta and BSc in Mechanical Engineering at West Bengal University of Technology. Debanik likes to hike, read nonfiction, photography (landscapes and astro) and listen to podcasts (do check out Lex Fridman and Andrew Huberman if you haven't already).
Samya is a Ph.D. student, working on the aspects controlling clay aggregation, and bacterial attachment to clay particles under different flow regimes, specifically trying to map the forces governing clay aggregation, and bacteria attachment to clay minerals flow regimes surface.
Yahel is a master's student in Environmental studies working on flow and reaction between miscible phases in porous media. She aims to find the physical and chemical stability of CO2 sequestration; to do that, she uses microscopy and microfluidics to measure the flow, mixing, and reaction of miscible phases.
The main goal of the research is understanding interactions between bacteria and clay particles, on the micro & nano level for controlling biofilm formation. For that, Adi is combining batch biological experiments with microfluidic measurements in specifically designed flow-cells.
Dr. Niloy De
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