Aerospace Engineering Seminar Series: Rahul Koneru
Wednesday, March 16, 2022
Virtual Hybrid/2164 Martin Hall, DeWalt Seminar Room
SPEAKER: Rahul Koneru
TITLE: Multiscale modeling of molten particulate deposition in rotorcraft engines
Rotorcrafts operating in dusty environments suffer serious damage from particulate ingestion into the gas turbine engine. These ingested particles melt in the combustion chamber and deposit on the engine components leading to flow blockages and thermal barrier coating (TBC) degradation thus affecting the operational efficiency. The particulate deposition phenomena spans a wide range of spatial and temporal scale thus requiring a multiscale framework to investigate the underlying physics. In this talk, I will present our ongoing research on the multiscale modeling effort being conducted in conjunction with the Army Research Laboratory. In particular, the interfacial wetting dynamics of a molten droplet on a TBC substrate will be examined at a microscale using many-body dissipative particle dynamics and the particle deposition in high-temperature subsonic flow conditions will be examined at a macroscale using the Euler-Lagrange framework.
Rahul Koneru received his Masters and PhD in Mechanical Engineering from the University of Florida in 2020 where he worked on high-speed dispersed multiphase flows at the Center for Compressible Multiphase Turbulence, a NNSA PSAAP-II center. Currently, he is working as the ARL Open Campus Postdoc in the AE department at UMD under the supervision of Dr. Alison Flatau to develop predictive capabilities to mitigate particulate deposition in rotorcraft engines and aid in the development of next-generation functional thermal barrier coatings.