Lab & Facilities
Mansoureh's new paper on the pore-scale dynamics of salt precipitation in drying porous media has been acepted for publication in Physical Review E. In this paper, We investigated the pore-scale dynamics of salt precipitation in three-dimensional drying porous media, utilizing high resolution X-ray micro-tomography and scanning electron microscopy. In this paper, we show that salt precipitation patterns in the porous media are nonuniform, manifesting the influence of the spatial distribution of pore sizes on the dynamics of salt crystallization and formation of discrete efflorescence. This study was conducted in collaboration with Prof. Muhammad Sahimi from the University of Southern California.
Nima has been invited to serve as the Associte Editor for the Journal of porous Media (http://www.begellhouse.com/journals/porous-media.html) and also for the Special Topics and Reviews in Porous Media-An International Journal (http://www.begellhouse.com/journals/special-topics-and-reviews-in-porous-media.html).
Nima was invited to give a talk on the pore-scale investgation of the dissiolved salt transport, distribution and precipitation patterns in drying porous media in Prof. Rainer Helmig's research group at the University of Stuttgart, Germany.
Dr. Homa Khosravian, our new post-doctoral researcher, joined our group. Homa recieved her Ph.D. in Chemical Engineering from University of Illinois at Chicago, USA. In our group, Homa will be mainly working on topics related to the enhanced oil recovery and multiphase flow in porrous media.
Our recent work on the a) effects of the roughness of the grains on drying of porous materials and b) pore-scale investigation of salt transport and precipitation patterns in drying porous media were presented at the 5th International Conference on Porous Media (Interpore 2013) held in Prague, Czech Republic.
Nima's new article about heat transfer around a solid cylinder wrapped with a porous ring written in collaboration with the University of Semnan and MIT was published in International Journal of Heat and Mass Transfer.
Starting 1 Januay 2013, Dr. Nima Shokri joined the School of Chemical Engineering and Analytical Science at the University of Manchester in Manchester, UK. His new email address is email@example.com
Our very own undergraduate students (Keita and Niko), together with Mansoureh and Nima presented their research results at the AGU Fall meeting 2012 in San Francisco, CA. Here is the title of their presentation- Keita: Cracking dynamics and morphology of desiccating clay overlying a granular substrate, Niko: Acoustic Signature of Evaporation from Porous Media, Mansoureh: Pore scale dynamics of NaCl deposition in evaporatingporous media resolved by x-ray microtomography, Nima: Salinity effects on the dynamics and patterns ofdesiccation cracks
Nima was invited to give a seminar on drying of porous media in Prof. Tsotsas's research group at Universitšt Magdeburg in Magduberg, Germany.
In collaboration with Utah State University (USU), Nima and his colleagues at USU developed an exact analytical solution to describe the steady-state water evaporation from porous media in the presence of a water table. Their work was published in Water Resources Research.
Nima served as a keynote lecturer in a workshop titled "Crystallization in Porous Materials" held in Trůia Portugal (http://www.phys.tue.nl/nfcmr/cryspom/cryspommain.html). He discussed about the physical aspects of drying and the dynamics of salt transport and crystallization patterns in porous materials.
Nima's new paper written in collaboration with Prof. Sahimi was published in Physical Review E. They have investigated the 3D dynamics, fractal characteristics and structure of a drying front during evaporation from porous media using synchrotron x-ray tomography.
Nima received an award from American Chemical Society - Petroleum Research Fund to conduct fundamental studies aimed at delineating the morphology and dynamics of the phase entrapment in immiscible two-phase flow through porous media.
Keita (our undergrad student) presented a fantatic poster at 4th International Conference on Porous Media in Purdue University. He described his research results about the effects of the substrate on the dynamics of cracking during clay desiccation. Also, Prof. Shokri had a talk about the wettability effects on the drying dynamics of porous materials.
In collaboration with Prof. Muhammad Sahimi from University of Southern California and Prof. Dani Or from ETH Zurich, we have studied the dynamics, morphology and scaling characteristics of the drying fronts propagating in hydrophilic (HI) and hydrophobic (HO) porous media duirng evaporation using neutron radiography technique. The results of this collaboration were published in Geophysical Research Letters.
Nicholas has received UROP award for Summer 2012 for his research on acoustical signatures of drying front displacement in porous media. Congratulation!!
Keita has received UROP award for Summer 2012 for his research on Crack Dynamics and Patterns in Desiccating Clay. Congratulation!!
Peng Zhou joined our laboratory as a visiting student. He will stay with us for 6 months to work on the dynamics of cracking in building materials. Peng is a master student in material science and civil engineering at …cole des Ponts ParisTech, Paris, France. Welcome Peng!
Our very own graduate student Mansoureh published her first paper in Geophysical Research Letters during the first year of her study. Big Congratulation to her! She discussed about the effects of salt concentration on the evaporation from porous media. Her results show that as salt concentration increases, evaporation rate decreases until a certain salt concentration. Any further increase in the salt concentration results in increasing evaporation rates!
Keita has received UROP award for Spring 2012 for his research on Crack Dynamics and Patterns in Desiccating Clay. Congratulation!
Our very own graduate and undergraduate students Mansoureh, and Nicholas had fantastic presentations at AGU fall meeting in San Francisco.
Keita has received UROP award for Fall 2011 for his research on Crack Dynamics and Patterns in Desiccating Clay. Congratulation!
Nicholas has received UROP award for Summer 2011 for his research on acoustical signatures of drying front displacement in porous media. Congratulation!