Joel Koplik Laboratory
Research interests:
- Nanoscale fluid mechanics
- Colloidal and swimming particles
- Porous media flows
- Superfluids
- Statistical mechanics
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.
Ingredients in a calculation of colloidal motion at the liquid/vapor interface of a thin film. (Joel Koplik)
Janus colloidal locomotor moving along a solid wall (Joel Koplik)
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)
Transport through a geological fracture with self-affine rough walls; (Left) fluid velocity map, (Right) trajectories of suspended and trapped particles (Joel Koplik)
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)
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)
Trajectory of an active Janus particle swimming and diffusing near a wall (Joel Koplik)
Shaghayegh Darjani
Doctoral Graduate Student, Chemical Engineering
Co-advised with Vincent Pauchard, Dept. Chemical Engineering
Asphaltene Adsorption and Phase Behavior at an Oil/Water Interface
Yu Han
Doctoral Graduate Student, Chemical Engineering
Co-advised with Charles Maldarelli, Dept. Chemical Engr., CCNY
The Effect of Adsorbed Particles on the Electrocolaescence of Aqueous Droplets in Dielectric Fluids
Jessica Rosenberg
Doctoral Graduate Student
Co-advised with Joel Koplik, Dept. of Physics, CCNY
The Dielectrophoretic Motion of Colloids At a Fluid Interface
Zohreh Javilland
Doctoral Graduate Student, Chemical Engineering
Co-advised with Ilona Kretzschmar, Dept. Chemical Engineering
Colloidal Motion of Patchy Particles
Publications
Selected Recent Publications
1. Self-propelled colloidal particle near a planar wall: a Brownian dynamics study | A. Mozaffari, N. Sharifi-Mood, JK and C. Maldarelli; Phys. Rev. Fluids 3, 014104 (2018).
2. Diffusivity and hydrodynamic drag of nanoparticles at a vapor-liquid interface | JK and C. Maldarelli; Phys. Rev. Fluids 2, 024303 (2017).
3. Extracting the lattice gas equation of state from RSA simulations using the Gibbs adsorption isotherm, S. Darjani, JK and V. Pauchard; Phys. Rev. E 96, 052803 (2017)
4. Self-diffusiophoretic colliodal propulsion near a solid boundary | A. Mozaffari, JK and C. Maldarelli; Phys. Fluids 28, 053107 (2016).
5. Surface impacts and coalescence of particle-laden nanodrops | JK, Phys. Fluids 27, 082001 (2015).
6. Channeling and stress during fluid and suspension flow in self-affine fractures | T. S. Lo and JK; Phys. Rev. E 89, 023010 (2014).
7. Molecular Dynamics Simulations: Insight into Molecular Phenomena at Interfaces | S. Razavi, JK and I. Kretzschmar; Langmuir 30,11272 (2014).
8. Multiscale liquid drop impact on wettable and textured surfaces | R. Zhang, S. Farokhirad. T. Lee and JK; Phys. Fluids 26, 082003 (2014).