October 9
@
12:00 PM
–
1:00 PM
The Mechanics Seminar Series is a weekly seminar given by campus and visiting speakers on topics across the spectrum of mechanics research (solids, fluids, and dynamics). Professor Melissa Green is an associate professor at the University of Minnesota.
Presentation Title: Physics-informed refinement of transition networks for unsteady lift prediction
Abstract: The prediction of lift during in-flight conditions poses significant challenges, and the development of effective tools for predicting aerodynamic loads is of great importance. In this work, a weighted-average based transition network was used to predict the lift generated by a pitching airfoil under highly separated flow conditions using surface pressure sensors as input. The number of required inputs was greatly reduced by observation of the flow field distribution and locations of greatest correlated pressure fluctuations.
Additionally, the network inputs were hybridized to include pitch angle and pitch rate, among others. We show that the lift prediction of a transition network based on 2-4 inputs predicted lift just as well as a prediction based on all 36 surface pressure sensors.