University of Minnesota
University of Minnesota: Department of Mechanical Engineering
http://www.me.umn.edu/

Welcome to the Dutcher Group

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Complex Fluids and Multiphase Flows

Complex fluids are fluidic mixtures featuring multiple phases and mesoscopic length scales, and include atmospheric aerosols, polymeric solutions and colloidal suspensions. An exciting feature of many complex fluids is their unusual response to external stimulus, such as thermal, chemical, mechanical, electrical or inertial forcing. The intricate dynamics observed in complex fluids, if well understood, can be engineered for numerous applications.

Our group's research interests are in fundamental studies of the dynamics, bifurcations and patterning of complex fluids and multiphase flows, with a specific focus on environmental remediation. Using laboratory experimental techniques and analytic mathematical modeling, we explore such areas as the thermodynamics of electrolyte-containing atmospheric aerosols, fluid dynamics and rheology of polymeric solutions, and microfludics of multiphase flows.

News:

November 2017: Andrew Metcalf and Shweta Narayan's paper "A Review of Microfluidic Concepts and Applications for Atmospheric Aerosol Science" was accepted by Aerosol Science and Technology. Congrats Andrew and Shweta! AS&T.

October 2017: Arundhati Bhide and Thomas Neumiller joined the lab as a 1st year ME PhD students. Welcome Arundhati and Tom!

October 2017: Professor Dutcher was awarded American Association for Aerosol Research (AAAR) Kenneth T. Whitby award. The Whitby award recongnizes outstanding technical contributions to aerosol science and technology by a young scientist. The aerosol thermodynamics and microphysics work being recognized is the result of outstanding research efforts by former and current Dutcher lab members Andrew Metcalf, Hallie Boyer, Lucy Nandy, Shweta Narayan and Peter Ohm. Congrats to all!

October 2017: Nikolas Wilkinson and Athena Metaxas's paper "pH Dependence of Bentonite Aggregate Size and Morphology on Polymer-Clay Flocculation" has just been accepted for publication in the Colloids and Surfaces A: Physicochemical and Engineering Aspects! This was the third paper in a fruitful MRSEC supported collaboration with Prof. Theresa Reineke's group in the Department of Chemistry. Congrats to All! Colloids and Surfaces A.

September 2017: Shihao Liu joined the lab as a 1st year ME PhD student. Welcome Shihao!

August 2017: Lucy Nandy's paper "Isotherm-Based Thermodynamic Model for Solute Activities of Asymmetric Electrolyte Aqueous Solutions" was accepted by Journal of Physical Chemistry A. Congrats Lucy! JPC A with Asymetric Salts.

August 2017: Shweta Narayan and Lucy Nandy received the American Association of Aerosol Research (AAAR) student travel grant for the upcoming AAAR annual conference. Congrats Shweta and Lucy! AAAR Student Travel Grants.

August 2017: Athena Metaxas received the Society of Rheology (SOR) student travel grant for the upcoming SOR annual conference. Congrats Athena! SOR Student Travel Grants.

July 2017: Nikolas Wilkinson's paper "Taylor-Couette Flow with Radial Fluid Injection" was accepted by Review of Scientific Instruments. Congrats Nikolas! Rev. Sci. Instrum.

July 2017: Lucy Nandy's co-authored paper "Spectroscopic Determination of Aerosol pH from Acid-Base Equilibria in Inorganic, Organic, and Mixed Systems" was accepted by Journal of Physical Chemistry A, in collaboration with Andrew Ault's group at the University of Michigan. Congrats Lucy! Aerosol pH paper

June 2017: Nikolas Wilkinson and Athena Metaxas's paper "Ionic Strength Dependence of Aggregate Size and Morphology on Polymer-Clay Flocculation" has just been accepted for publication in the Colloids and Surfaces A: Physicochemical and Engineering Aspects! This was an exciting collaborative effort with Prof. Theresa Reineke's group in the Department of Chemistry. Congrats to All! Colloids and Surfaces A paper.

June 2017: Hallie Boyer's Feature Paper on Atmospheric Aerosols appeared on today's cover of the Journal of Physical Chemistry A. Cover Art

News Archive

Contact Information:

Prof. Cari S. Dutcher
University of Minnesota
Mechanical Engineering Department
111 Church St. SE
Minneapolis, MN 55455

Office: 111 Mechanical Engineering
e-mail: cdutcher at umn dot edu
Phone: 612-624-0428