PSU Mark
Eberly College of Science Mathematics Department

Meeting Details

For more information about this meeting, contact Changhe Qiao, Fei Wang, Lu Wang.

Title:A Second Order Time Homogenized Model for Sediment Transport
Seminar:CCMA PDEs and Numerical Methods Seminar Series
Speaker:Shuonan Wu
Abstract:
A multi-scale method for the hyperbolic systems governing sediment transport in subcritical case is developed. The scale separation of this problem is due to the fact that the sediment transport is much slower than flow velocity. We first derive a zeroth-order homogenized model, and then propose a first-order correction. It is revealed that that the first-order correction for hyperbolic systems has to be applied on the characteristic speed of slow variables. We develop a second-order numerical scheme following the framework of heterogeneous multi-scale method. The numerical results in both one and two dimensional cases demonstrate the effectiveness and efficiency of our method.

Room Reservation Information

Room Number:MB315
Date:09 / 19 / 2014
Time:03:30pm - 05:00pm