In this seminar, I will first introduce an empirical four-parameter formula for lift and drag on an airfoil, which shows good fits to experimental data. I will then use this formula to obtain a closed form nonlinear dynamical model of the longitudinal or pitch plane motions of an aircraft. The method of time scale separation […]
Data-driven approaches have generated tremendous excitement in turbulence modeling, but enthusiasm has often outpaced scientific rigor. Many current AI/ML turbulence models lack physical interpretability, exhibit limited generalizability across flow regimes, and do not reflect the true dynamical nature of turbulence. A new strategy is needed—one that leverages AI while remaining fully compliant with the physics […]
Model Predictive Control (MPC) is a widely used optimization-based framework for the synthesis of feedback control, with mature theory and practice in the linear setting. Yet computational tractability remains a key bottleneck—particularly for robust nonlinear min-max MPC—because solving a (robust) optimization problem at every step is expensive and often intractable in practice. Explicit or approximate MPC […]
SSWR, Department of Aerospace Engineering, is organizing a workshop on Ideation. Resource Person: Dr. Ripi Singh Digital Transformation and Innovation Coach; Author, Keynote Speaker, Futurist, 4.0 Evangelist; Former Aero Faculty, Former R&D Executive; Advisor To Several University Centers; and US Expert for ISO on Innovation Management.
Bulk ferromagnetic materials exhibit Joule magnetostriction with characteristic strain magnitudes on the order of (10^{-6}) to (10^{-4}), which is often insufficient for the displacement requirements of modern soft robotic and adaptive structural systems. Ferromagnetic elastic slender structures provide a promising alternative, offering the potential for large actuation displacements under small external magnetic fields. This enhanced […]
The importance of transitional flow studies can be realized from the fact that it acts as a bridge between the laminar and turbulent flows. The present work deals with the investigation of time-frequency characteristics of transitional flows and their modelling, which is presented in three parts. First, we propose a wavelet-transform based smooth detector function […]
Automated Fiber Placement (AFP) is transforming the fabrication of high-performance thermoplastic composites by enabling precision layup of fiber tows with spatially controlled heating and compaction. Yet, the interplay of radiative heating, heat diffusion, and material flow during AFP remains one of the least understood links between process parameters and structural performance. This seminar presents a […]
Jayendra 'Jay' Ganguli , is the Associate Director at Pratt & Whitney / RTX, leading initiatives in Model-Based Digital Thread and Digital Twin technologies for Manufacturing and Industry 4.0 Architecture. With over 30 years of experience in the Aerospace and Defense industry, his career spans leadership roles at GE Aviation, Boeing (Space and Commercial Aviation), […]
Multi-label learning (MLL) addresses learning problems in which a single data instance may simultaneously belong to multiple semantic categories. This formulation arises naturally in many real-world applications, including image and video understanding, medical diagnosis, text categorization, and bioinformatics. In many of these settings, it is not sufficient to merely rank relevant labels higher than irrelevant […]
Two supersonic streams merging together in a co-flow configuration are encountered in several engineering systems, such as high-speed propulsion devices and supersonic ejectors. The thin mixing layer that develops between the two streams is dominated by compressibility effects and is prone to shock interactions in shock-dominated flows. The convective Mach number is defined relative to […]
he constructive role of temporal disorder (random noise) in facilitating responses of nonlinear systems will be explored in this talk, through a combination of experimental and numerical investigations. In particular, nonlinear oscillators and nonlinear oscillator arrays will be considered. These oscillator systems represent models of micro-scale and macro-scale systems and energy harvester systems. It is […]
Innovative high-performance structural designs play a critical role in mitigating insecure events such as low-velocity and ballistic impacts. These events involve significant kinetic energies, requiring structures that are lightweight, safe, and capable of absorbing energy effectively. Closed cell metallic foams have been widely adopted in aerospace, marine, civil, mechanical, and automotive industries due to their […]
