The Benjamin Levich Institute for Physico-Chemical Hydrodynamics is a research institute located on the campus of the City College of New York (CCNY), the flagship school of the City University of New York. The Institute is comprised of five faculty from CCNY – Jeff Morris (director) and Charles Maldarelli (both from Chemical Engineering) and Joel Koplik, Mark Shattuck, and Hernan Makse (all from the Physics Department), and associated graduate and postdoctoral students. The faculty work co-operatively on interdisciplinary problems in soft matter physics, including fluid and granular mechanics, molecular dynamics simulations, interfacial science and network and data science theory.

Current research interests focus on friction in flows of dense suspensions of  particles, the microrheology of complex fluids,  self-propelled (active) colloidal engines, the dynamics and self-assembly of colloids  at fluid interfaces, microfluidics in lab on a chip devices, static and  dynamic transitions  of jammed states of non-spherical and deformable particles,  jamming dynamics in sediment transport,  neural networks of the brain and the spread of information over social networks.

hernan1-compress

A geolocation based visualization of a nation-wide Mexican mobile network (Hernan Makse)

hernan2-compress

Using machine learning and statistical physics to predict human behavior (Hernan Makse)

hernan3_compressed

Network theory applied to the brain (Hernan Makse)

hernan4-compress

Jammed matter studied by Edwards statistical mechanism (Hernan Makse)

hernan5-compress

Packing states of particles with different geometries (Hernan Makse)

Shattuck1-compress

Jamming of deformable polygons (Mark Shattuck)

Shattuck2-compress

Granular packing mesh (Mark Shattuck)

Shattuck3-compress

Formation of a tail bud in granular packing (Mark Shattuck)

Shattuck4-compress

Hydrodynamic erosion of sediment in turbulent flow. (Mark Shattuck)

Shattuck5-compress

Molecular dynamics simulations of cooling of metal-metalloids alloys (Mark Shattuck)

shape-shifting-compress

Deformable particles like cells can fill complex geometries more efficiently than fixed shapes like circles. (Mark Shattuck)

jeff1_compressed

Simulation of rheology of a polydisperse suspension (Jeffrey Morris)

jeff2-compress

Simulation of rheology of dense suspensions of particles with attractive forces. (Jeffrey Morris)

jeff3-compress

Simulation of suspension viscosity in the transition between lubrication to frictional rheology (Jeffrey Morris)

jeff4-compress

Simulations of shear thickening in dense suspensions including the role of friction due to particle-particle contacts (Jeffrey Morris)

charles1-compress

Microparticle arrays for lab-on-chip diagnostic assays (Charles Maldarelli)

charles2_compressed

Hydrodynamics of interaction of colloids attached to a particle surface (Charles Maldarelli)

charles3_compressed

Hydrodynamics of a particle translating and rotating on a surface of a thin film (Charles Maldarelli)

charles4-compress

Minimalist design of tripeptide esterase artificial enzymes (Charles Maldarelli)

charles5-compress

Chemical herding for maritime oil spill remediation (Charles Maldarelli)

Joel1_compressed

Molecular configuration snapshot (Top) and density profile (Bottom) at a liquid/liquid interface; (Left) weak attraction between the two fluid’s molecules, (Right) pure repulsion. (Joel Koplik)

joel2-compress

Ingredients in a calculation of colloidal motion at the liquid/vapor interface of a thin film. (Joel Koplik)

joel3-compress

Janus colloidal locomotor moving along a solid wall (Joel Koplik)

Joel4_compressed

Random sequential adsorption simulation of hexamer molecules at a liquid/vapor interface. Extracting the lattice gas equation of state from RSA simulations using the Gibbs adsorption isotherm (Joel Koplik)

joel5-compress

Transport through a geological fracture with self-affine rough walls; (Left) fluid velocity map, (Right) trajectories of suspended and trapped particles (Joel Koplik)

joel6-compress

Side view/top view of the final states for various drops impacting a solid surface; left to right: pure liquid, 21% particulate suspension, 42% suspension and particle-coated drop. (Joel Koplik)

joel7-compress

Splash patterns for liquid drops on a patterned surface; (Left) non-wetting cross on a wetting background, (Right) wetting cross on a non-wetting background. (Joel Koplik)

Joel8_compressed

Trajectory of an active Janus particle swimming and diffusing near a wall (Joel Koplik)

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