Jonathan Rothstein
Assistant Professor, Dept. of Mechanical and Industrial Engineering
16 Gunness Laboratory, University of Massachusetts
Amherst, MA 01003-9292
(413) 577-0110
rothstein@ecs.umass.edu
http://www.ecs.umass.edu/mie/faculty/rothstein
Dynamics Of Complex Fluids
Professor Rothstein's research interests are quite broad, drawing from topics commonly associated with mechanical engineering, but also from fields related to chemical engineering, biomechanical engineering and optical engineering. His current research program is a well balanced experimental and theoretical research program in the dynamics of complex fluids. Among other topics, Professor Rothstein research interests include non-Newtonian fluid dynamics, non-isothermal flow, hydrodynamics stability, optical measurement techniques, microfluidics, rheology and polymer processing.
| Research Interest | Potential Application |
|---|---|
| Extensional rheology of complex fluids | Processing, characterization and design of complex fluid such as polymeric fluids, surfactant solutions and nanoparticle suspensions for consumer products |
| Drag reduction using ultrahydrophobic surfaces | Reducing drag in everything from submersible vehicles to lab on a chip technology |
| Hydrodynamic stability of complex fluids. In paticular we are interested in the stability of flows of self-assembling systems such as micelle solutions and associative polymers | Elasticity combined with streamline curvature can make a flow unstable even at low Reynolds numbers. The applications range from turbulent drag reduction to enhanced oil recovery |
| Rheology of nanoparticle suspensions in viscoelastic polymeric fluids | The use of functionalized nanoparticles allows one to tailor the rheology, processiblity and final mechanical properties of polymer melts or solutions in order to develop a host of new materials |
Honors and Awards
- Professor of the Year Award, Dept. of Mechanical and Industrial Engineering, 2004
- Young Scientists Award, Rheofuturist TM Initiative, 2004
- 3M Nontenured Faculty Award, 2003
- Frenkiel Award, Division of Fluid Dynamics, American Physics Society, 2002
Publications
- Ou, J. and Rothstein, J.P., "Laminar drag reduction in microchannels using ultrahydrophobic surfaces," Submitted Phys. Fluids (2004).
- Miller, E. and Rothstein, J.P., "Characterization and control of the sharkskin instability through localized thermal modification," In Press in Rheol. Acta (2004).
- J. P. Rothstein, "Transient extensional rheology of wormlike micelle solutions," J. Rheol. 47 (2003) 1227-1247.
- S. Chen and J. P. Rothstein, "Flow of a wormlike micelle solution past a falling sphere," J. Non-Newtonian Fluid Mech. 116 (2004) 205-234.
- J.P. Rothstein and G.H. McKinley. "Non-isothermal modification of purely elastic flow instabilities in torsional flows of polymeric fluids," Phys. Fluids, 13 (2001) 282-296.
