PSU Mark
Eberly College of Science Mathematics Department

Meeting Details

For more information about this meeting, contact Victor Nistor, Stephanie Zerby, Mark Levi, Jinchao Xu.

Title:Introduction to passive scalar mixing, mixing with constraints, mixing measures and optimal stirring strategies
Seminar:CCMA Luncheon Seminar
Speaker:Evelyn Lunasin, U. Michigan, Mathematics
The advection of a substance by an incompressible flow is important in many physical settings. This process often involves complex evolving structures of wide range of space and time scales. We concentrate on the case of scalar advection where the transported quantity is passive, so has negligible feedback on the flow. We address the following question: Given an initial tracer distribution what incompressible flow field, satisfying certain reasonable amplitude constraints, should be imposed that will stir the scalar quantity in an optimal manner. We will discuss how one can quantify the degree of mixedness of the passive scalar field. That is, what we mean by optimal stirring and what is the quantity that needs to be optimized in the stirring process. We will also discuss what are the relevant constraints on the flows.

Room Reservation Information

Room Number:MB114
Date:09 / 07 / 2012
Time:12:20pm - 01:30pm