On Monday, February 24, Dr. Cheng Huang gave a seminar over, “Data-Driven and Reduced Order Modeling of Combustion Dynamics in Propulsion Systems.” Dr. Huang is an Assistant Research Scientist in Aerospace Engineering at The University of Michigan.
Abstract: Combustion dynamics is characterized by the coupling between flow dynamics, chemistry, and acoustics. In propulsion systems, this complex coupling can lead to combustion instabilities and cause devastating engine failures. Even though modern computational capabilities have moved beyond the empirically-based design analyses of the past, high-fidelity (e.g. Large Eddy) simulations of full-scale engines remain out of reach for day-to-day engineering design applications. This drives the motivation to develop accurate and low-cost model to simulate dynamics in complex propulsion systems, especially for the space exploration initiatives. This talk will present recent work on computational modeling of turbulent reacting flow for engineering applications with emphasis on progress in Data-Driven and Reduced Order Modeling framework development for reacting flow problems to enable efficient prediction of combustion dynamics in liquid fueled rocket combustion systems. Specific topics include 1) high-fidelity (e.g. Large Eddy) simulations of turbulent reacting flow for engineering applications; 2) development and successful demonstration of Multi-fidelity Modeling Framework for design applications of large scale combustion devices and 3) advancement in the state-of-art in Data-Driven and Reduced Order Modeling for complex dynamical systems to produce orders of magnitudes accelerated accurate models from high-fidelity data.
Biography: Dr. Cheng Huang is currently an Assistant Research Scientist in Aerospace Engineering at University of Michigan – Ann Arbor. Before that he worked as a PostDoctoral Research Assistant in the School of Aeronautics and Astronautics at Purdue University. Dr. Huang received his PhD in Mechanical Engineering from Purdue University in 2015, his M.S. in Mechanical Engineering from Purdue University in 2012. He completed his undergraduate education in Mechanical Engineering from Shanghai Jiaotong University in 2011. He specializes in computational modeling of turbulent reacting flows in complex combustion systems (e.g. rocket and gas turbine engines). His work primarily focuses on high-fidelity Large Eddy Simulation (LES), Data-Driven and Reduced Order Modeling (ROM) of combustion dynamics in aerospace propulsion systems.