The University of Massachusetts Amherst
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Jonathan Rothstein


Dynamics of complex fluids; Non-Newtonian fluid dynamics; non-isothermal flow; hydrodynamics stability; optical measurement techniques; microfluidics; laminar and turbulent drag redution; rheology and polymer processing 

Current Research
I am actively involved in research in a number of different areas including: the dynamics of complex fluids; laminar and turbulent drag reduction; the development and utilization of superhydrophobic surfaces; shear and extensional rheology of a number of different complex fluids; non-Newtonian fluid dynamics; microfluidics; nanotechnology; non-isothermal flows; hydrodynamic stability; and polymer processing. Below you will find a number of short examples of the active research in my group along with links to the corresponding publications and graduate students responsible for the work.

Learn more at

Academic Background

  • B Eng The Cooper Union, 1996
  • MS Harvard University, 1998
  • PhD MIT, 2001
A.A. Dey, Y. Modarres-Sadeghi and J.P. Rothstein, ‘‘Viscoelastic fluid-structure interactions between a flexible cylinder and wormlike micelle solution,’’ Phys. Rev. Fluids 3 (2018) 063301
D. Song, B. Song, H. Hu, X. Du, P. Du, C.-H. Choi and J.P. Rothstein, ‘‘The effect of surface tension gradient on the slip flow along a superhydrophobic air-water interface,’’ Phys. Rev. Fluids 3 (2018) 033303
Z. Khalkhali, W. Xie, V.K. Champagne, J.H. Lee, J.P. Rothstein, "A comparison of cold spray technique to single particle micro-ballistic impacts for the deposition of polymer particles on polymer substrates," Surface and Coatings Technology, 351 (2018) 99-107
H. Xu, A. Clarke, J.P. Rothstein and R.J. Poole, ‘‘Viscoelastic drops moving on hydrophilic and superhydrophobic surfaces,’’ J. Colloid and Interface Sci. 513 (2018) 53-61
A.M. Karim, J.P. Rothstein and H.P. Kavehpour, ‘‘Experimental study of dynamic contact angles on rough hydrophobic surfaces,’’ J. Colloid and Interface Sci. 513 (2018) 658-665
M. Rosello, S. Sur and J.P. Rothstein, ‘‘Dripping-onto-substrate extensional rheometry of low viscosity polymer solutions common to ink jet fluids,’’ submitted J. Non-Newtonian Fluid Mechanics (2018)
S. Sur, M. Chellamuthu and J.P. Rothstein, ‘‘High temperature extensional rheology of linear, branched and hyper-branched polycarbonates,’’ submitted to Rheologica Acta (2018)
S. Khandavalli, P. Rogers and J.P. Rothstein, ‘‘Roll-to-roll fabrication of hierarchical superhydrophobic surfaces,’’ App. Phys. Lett. 113 (2018) 041601
J.-H. Kim, J.P. Rothstein and J.K. Shang, ‘‘Dynamics of a flexible superhydrophobic surface during a drop impact,’’ Phys. Fluids 30 (2018) 072102
S. Sur and J.P. Rothstein, ‘‘Drop breakup dynamics of dilute polymer solutions: Effect of molecular weight, concentration and viscosity ’’ J. Rheol. 62 (2018) 1-15
Contact Info

Mechanical and Industrial Engineering
16 Gunness Lab
160 Governors Drive
Amherst, MA 01003

(413) 577-0110