AE Brown Bag Seminar
Friday, March 8
11:00 a.m. -1:00 p.m.
Guggenheim 442
Pizza Served
Leo Kastenberg
Cem Kocer
Jason Lararov
Leo Kastenberg
Title:
Acoustic analysis of jet engine combustion using LES.
Abstract:
Developing a better understanding of the mechanisms of noise production in jet engines will allow people to develop quieter engines in the future. To obtain detailed data on the production of acoustic waves, a Large Eddy Simulation (LES) was performed on a jet engine combustor. Data such as 2D mode shapes and frequency spectra at wall taps could be compared with data from a corresponding physical experiment. The flow field data from the LES allows us to perform much more detailed analysis to determine the processes that produce the observed noise. Specific tones can be observed in the flow field using FFT and Welch analysis of pressure fluctuations for direct noise and entropy fluctuations for indirect noise.
Faculty Advisor:
Professor Suresh Menon
Cem Kocer
Title:
Integration of Solar Systems at Airports for Electrified Aircraft Operations and Eco-friendly Aviation
Abstract:
This research runs in parallel with NASA's Electrified Powertrain Flight Demonstration (EPFD) project, delving into the shift towards electrified aircraft propulsion and its implications. NASA EPFD is at the forefront, conducting extensive tests and research to pave the way for hybrid electric-powered aircraft. As electrified aircraft gain traction, there emerges a need for updated airport infrastructures capable of supporting such advancements. Integrating solar photovoltaic (PV) systems and battery storage could transform airports into energy hubs, particularly benefiting regional airports with significant economic impacts. Our findings reveal substantial ground space at airports that complies with FAA regulations and can be utilized for PV installations. This space is sufficient to not only cover airport terminal energy demands but also support aircraft charging operations. Utilizing data on potential flight schedules for electrified aircraft, we simulated charging scenarios to assess feasibility. The results affirm that adopting renewable energy in airport operations can be achieved without escalating flight costs while simultaneously reducing greenhouse gas emissions, thereby contributing to the sustainability of aviation.
Faculty Advisor:
Professor Cedric Justin
Jason Lararov
Title:
Design and Manufacture of a Testbed for Sloshing Analysis and Experimentation
Abstract:
Sloshing is an oscillatory motion of liquids in partially filled containers which occurs on a large scale in modern rockets and aerospace vehicles, particularly due to the liquid in fuel tanks and propellant. This kind of sloshing can have significant effects in low gravity environments and can negatively affect mission efficiency. The aim of the sloshing team of the Low Gravity Science and Technology lab is to develop methods to model such sloshing and its effects, using an open-source software known as SLOSH ML, as well as verify the accuracy of this program in real world applications using a sloshing analysis testbed. As part of the machining sub team, I was tasked with designing and manufacturing the testbed needed for this verification process, and this seminar will cover the ways in which the machining sub team was able to accomplish this, and our future plans for experimentation using the testbed.
Faculty Advisor:
Professor Álvaro Romero-Calvo