"Extracting Dominant Spatiotemporal Structures in Complex Flows"

This event is sponsored by FAMU-FSU Engineering Department of Mechanical and Aerospace Engineering.

Abstract: Complex flow fields require detailed knowledge of the underlying dynamics for eventual control. Modal analysis techniques allow for studying the dominant unsteady spatiotemporal patterns in these flows, providing insight into the system’s dynamics and helping assess the effectiveness of imposed control. The focus of this work is on data-driven methods based on dynamic mode decomposition (DMD) for flow assessment. The limitations of the DMD are discussed, along with several extensions to overcome them. Applications to several problems, including experimental schlieren and numerical simulations of boundary-layer transition control at Mach 0.5, will be presented.

Dr. Arman Ghannadian

Postdoctoral Scholar

Mechanical & Aerospace Engineering

FAMU-FSU College of Engineering

Speaker Bio: Arman Ghannadian is a postdoctoral scholar in the Department of Mechanical & Aerospace Engineering at the FAMU-FSU College of Engineering. Prior to this, he earned his PhD in Aerospace Engineering at the University of Florida. His research interests include understanding the behavior of unsteady and turbulent flows and their control.