MEMS Seminar: The Role of Fine Scale Boundary Layer Dynamics in High-Speed FSI: How Important Is It, and Can We Capture It?

Jan 23

Wednesday, January 23, 2019

12:00 pm - 1:00 pm
Fitzpatrick Center Schiciano Auditorium Side A, room 1464

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Presenter

Dr. Jack McNamara | Ohio State University

Dr. Jack McNamara

Hypersonic structural systems must withstand extreme environmental conditions while also maintaining optimal weight.  A considerable challenge is understanding and predicting the loads transmitted to the structure from an adjacent turbulent boundary layer, which raises the concern for structural fatigue.  

This seminar will cover research on this problem that spans basic phenomenological study aimed at identifying key parameters, fine scale simulation of turbulence over varying surface conditions to assess the degree of coupling with a compliant surface, and finally the challenges and progress towards reduced order models aimed at coupled simulation of structures responding to unsteady flows with spatiotemporally resolved boundary layers. 

Jack J. McNamara is a professor in the Department of Mechanical & Aerospace Engineering at The Ohio State University.  His research interests are broadly in the areas of computational fluid-structural interactions and model reduction of high-dimensional dynamical systems.  A core application target is air vehicle operation in high-speed flow regimes, where there is a potential for complex interactions at both the component (fluid-thermal-structural-material) and vehicle (aero-servo-thermo-elastic-propulsive) levels.  Other application areas include fluid-structural centric problems associated with ship airwakes, wind turbines, flapping wing air vehicles, automobiles, and turbomachinery.  He is the director of the Multi-Physics Interactions Research Group (MIRG \murj\) at The Ohio State University and the AFRL-University Collaborative Center in Structural Sciences. 

Lunch will be served at 11:30 am.

Hosted by Dr. Earl Dowell.

Contact

Dzwonczyk, Laura
919-681-3132
laura.dzwonczyk@duke.edu