MEMS Seminar: The Role of Fine Scale Boundary Layer Dynamics in High-Speed FSI: How Important Is It, and Can We Capture It?
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.
Lunch will be served at 11:30 am
Hosted by Dr. Earl Dowell.