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People

Graduate Students

Yile Gu

yile.jpg

Education:

B.S., Rose-Hulman Insitute of Technology, 2012

M.A., Princeton University, 2014

Current Research:

- Proposing Models for Dense Granular Rheology for Particle with Cohesion and PSD

Y. Gu, S. Chialvo, and S. Sundaresan. Rheology of cohesive granular materials across multiple dense-flow regimes. Physical Review E 90, 032206 (2014).

Y. Gu, A. Ozel, and S. Sundaresan. Rheology of granular materials with size distributions across dense-flow regimes. Powder Technology 295, 322 (2016)

Assessing the Effects of Cohesion and PSD on Fluidization

Y. Gu, A. Ozel, and S. Sundaresan. Numerical studies of the effects of fines on fluidization. AIChE Journal 62, 2271 (2016)

- Modeling Fluidzation of Group A Particles at Industrial Scale

Y. Gu, A. Ozel, and S. Sundaresan. A modified cohesion model for CFD-DEM simulations of fluidization. Powder Technology 296, 17 (2016)

Google Scholar: https://scholar.google.com/citations?user=mnxh0UMAAAAJ&hl=en

Website: http://yile.strikingly.com/

Email: yile@princeton.edu

Greg Rubinstein


Education:

B.S., California Institute of Technology,  2011

M.A., Princeton University, 2013

Current Research:

My research focuses on investigating the interaction forces between fluid and solid particles at small length scales. Using insights gained from highly-resolved lattice Boltmann method (LBM) simulations, I seek to develop fluid-particle drag models that can be applied as constitutive closures in larger-scale simulations of fluidized beds in order to improve our ability to understand the complex dynamics observed in these systems. Specifically, using these direct numerical simulation (DNS) techniques, I seek to better understand the role that a particle's inertia relative to the viscosity of a fluid plays in the drag force experienced by a particle. Furthermore, I study the effect that inhomogeneities in the distribution of particles has on the drag force experienced by a fluid passing by these particles. My goal is to demonstrate that by accounting for these different system characteristics, my new drag model provides a significant improvement in predicting fluidization behavior over prior constitutive relations.

Email: grubinst@princeton.edu

Yundi Jiang

Education:

B.S., Georgia Institute of Technology,  2015

Email: yundij@princeton.edu

Postdoctoral Researchers

Chris Boyce


Education:

B.S., Chemical Engineering and Physics, Massachusetts Institute of Technology,  2011

Ph.D., Chemical Engineering, University of Cambridge, 2015

Current Research:

In my research, I aim to understand the fundamental physics underlying multiphase flows in order to enable optimal design and operation of processes in industry and nature relevant to energy, food and pharmaceutical production as well as waste management. I am currently working to understand the effects of liquid bridging and other interparticle forces on hydrodynamics in fluidized beds. I am using small-scale models to understand the various effects of wetting conditions on flow and the salient non-dimensional numbers in characterizing the flow. I am coarse-graining these simulations to achieve accurate industrial-scale models which account for the effect of wetness on gas-solid flows. I have a background in using magnetic resonance imaging (MRI) to study detailed hydrodynamics in multiphase flow systems, and I intend to continue this research in the future to understand the effects of interparticle forces on multiphase flows on an experimental level.

ResearchGate Profile:  https://www.researchgate.net/profile/Christopher_Boyce4

Google Scholar Profile:  https://scholar.google.com/citations?user=mZniLV8AAAAJ&hl=en&oi=ao

Email: cmboyce@princeton.edu

Jari Kolehmainen


Education:

M.S.E., Tampere University of Technology, 2013

Ph.D., Tampere University of Technology,  2014

Email: jarik@princeton.edu

Siavash Darvishmanesh

Education:

Ph.D., Katholieke Universiteit Leuven, 2011

Email: siavashd@princeton.edu

Associate Research Scholars

Ali Ozel


Education:

B.Sc., Aeronautical Engineering, Istanbul Technical University,  2004

M.Sc., Aerospace Engineering, Istanbul Technical University, 2006

Diploma Course in Fluid Mechanics, von Karman Institute for Fluid Dynamics, 2007

Ph.D., Fluid Mechanics, Institute of Fluid Mechanics of Toulouse, National Polytechnic Institute of Toulouse, 2011

ResearchGate Profile: https://www.researchgate.net/profile/Ali_Ozel

Email:  aozel@princeton.edu