Dr. Ling Xu from North Carolina Agricultural and Technical State University (hosted by Professor Xingjie Li).
Title: Vortex dynamics computed by Lagrangian methods
Abstract: The work is built upon the research on two-dimensional inviscid fluid dynamics like the merger, filamentation, instability using magnetized electron columns in the laboratory (Durkin & Fajans, PRL, 2000). These fundamental fluid dynamics phenomena find applications in hurricanes, turbulence, and oceanography. In the work, we are using two numerical methods, particle-panel vortex method and contour dynamics, to study the vortex filamentation and mergers. Techniques such as adaptive-point-insertions and tree-code are employed to increase the accuracy and speed up the simulations. In the end, I will talk about an on-going project on studying material transport using Machine Learning.