Specialisation:

Chemical Engineering

Polymer Science

Rheology

Fluid Mechanics

Materials processing 

Major Professional Contributions:

• Pakdel-McKinley criterion for onset of flow instability in viscoelastic fluids

• Fourier-Tschebyshev Formalism for quantifying Large Amplitude Oscillatory Shear Flow; MITlaos

•Filament Stretching Extensional Rheometer (FISER)

• Capillary Breakup Extensional Rheometer (CABER)

• Rayleigh-Ohnesorge Jet Extensional Rheometer (ROJER)

• Superoleohobic and super-omniphobic surfaces

• Gabor transforms for time-varying rheometry

• fractional calculus for complex fluids

Consultancy Areas:

• Rheology

• Polymer processing and characterization

• superhydrobic surfaces and non-wettabilify

Sector Associated With:

Polymer Engineering

Sectors Interested to Offer Service:

Polymer Processing

Materials Characterization

Complex Fluids Processiong

Petroleum Exploration (Drilling)

Professional Experience

Assistant and Associate Professor, Harvard University (1991-1996)

Associate and Full Professor, MIT (1997-present)

Keywords

rheology

constitutive model

LAOS

Chirp

extensional rheometer

viscoelasticity

polymer solution

complex fluid

superhydrohobic surface

oleophobic surface

wettability