Ranga Narayanan

Ranga Narayanan

Ranga Narayanan

Ph.D., 1978, Illinois Institute of Technology (1981)

Professor and Distinguished Teacher Scholar

Phone : 352-392-9103
E-mail : ranga@che.ufl.edu
Address : 404 Chemical Engineering Building
University of Florida, USA
Website : http://csse.che.ufl.edu/index.html

Research Description:  Our research is concerned with pattern formation and instabilities. The pattern formation is associated with instabilities of a parent state as a control parameter is changed. The mathematical methods used in our research are related to bifurcation theory, nonlinear energy methods and perturbation techniques. The experimental methods involve flow sensing by infrared imaging, shadow-graphy, and electrochemical titration. Some of our experiments have been conducted under microgravity conditions.  Applications of our work are in regenerative life support, microfluidics, chemical sensing, crystal growth, evaporative transport and materials processing.

PIRE Project Description:  Collaborativework is being conducted with Univ Lille and Univ Bordeaux in France and JAXA, Japan on the effect of low gravity on the Faraday instability of miscible and immiscible fluid systems. The goal is to understand the origin of  subcritical instability under induced vibrations. Other collaborative studies with St. GobainResearche and Univ Paris 11  involve flow instabilities in convective flows. A third collaborative study with JAXA, Japan and Tokyo Univ Science as well as Univ Lille in France is on spatio-temporal patterns in Marangoni flows. This work is also partly supported by the Partner Univ. Fund and NASA.