AEM Seminar: TODAY, October 25th - James Scoggins, Aerospace Engineering, NASA
Molly Schmitz
Fall 2024 Seminar Series
Abstract:
The Mars 2020 vehicle, carrying the Perseverance Rover and Ingenuity Helicopter, successfully landed on the Red Planet on February 18, 2021. During its entry into the Martian atmosphere, an onboard sensor suite, dubbed MEDLI2, recorded an unprecedented number of surface pressures, in-depth temperatures, and total and radiative heat flux measurements in order to help NASA engineers reconstruct the aerothermodynamic environment surrounding the vehicle and provide a wealth of data for validating their numerical simulation tools. In this talk, I will describe recent modeling of the on-board radiometer which improves our understanding of the radiation measurements from MEDLI2. In particular, I will discuss how we constructed an optical model of the radiometer based on first principles, what insight the model provides for understanding the radiometer signal loss observed during flight, and how we can improve our calibration procedures in the future.
Bio:
Dr. James Scoggins is a Research Aerospace Engineer in the Aerothermodynamics Branch of NASA Langley Research Center. He has a Ph.D. in Aerospace Engineering jointly from the von Karman Institute for Fluid Dynamics in Brussels, Belgium, and CentralSupélec in Paris, France, with a thesis entitled "Development of numerical methods and study of coupled flow, radiation, and ablation phenomena for atmospheric entry." Dr. Scoggins is the creator and main developer of the open-source library called Mutation++ which provides thermodynamic, transport, and kinetic data for ionized gases. His current research interests include aerothermodynamics, machine learning, and multi-fidelity modeling approaches.
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