Colloquium

Interpretable Polynomial Neural ODEs

TIME: 3:30 PM LOCATION: GMCS 314 SPEAKER: Linda Petzold, UC Santa Barbara, Mechanical Engineering and Computer Science ABSTRACT: Neural networks have the ability to serve as universal function approximators, but they are not interpretable and do not generalize well outside of their training region. Both of these issues are problematic when trying to apply standard neural […]

Projecting the Future: Quantifying Uncertainties in How the Climate Will Change

TIME: 3:30 PM LOCATION: GMCS 314 SPEAKER: Nathan Urban, Brookhaven National Laboratory ABSTRACT: As carbon dioxide emissions to the atmosphere continue from fossil fuel consumption, the Earth’s climate will change considerably over the course of this century due to the resulting greenhouse effect. Societies and ecosystems will feel these global changes in the form of extreme […]

Computational Shock Development: accurately resolving cusps and discontinuities in the Euler equations

TIME: 3:30 PM LOCATION: GMCS 314 SPEAKER: Steve Shkoller, University of California, Davis ABSTRACT: We present a novel Computational Shock Development (CSD) algorithm for the 1D Euler equations, based on an Arbitrary Lagrangian-Eulerian mesh-movement scheme, that is designed to capture the fine cusp structures which emerge when sound waves first steepen to form a gradient […]

Automatic Performance Optimization for Analog IC Design

TIME: 3:30 PM LOCATION: GMCS 314 SPEAKER: Poki Chen,National Taiwan University of Science and Technology, Dept. of Electronic and Computer Engineering ABSTRACT: The fine-tuning process of analog integrated circuit design is both time-consuming and labor-intensive. To assist analog IC designers who are new to software development and eager to enhance design efficiency, a simple auto-optimization […]

Hermite Isoparametric Finite Element Models for Laminated Kirchhoff Plates with Arbitrary Geometries Using Strain Gradient Theory

TIME: 3:30 PM LOCATION: GMCS 314 SPEAKER: Michele Bacciocchi, DESID Department, University of San Marino, Republic of San Marino ABSTRACT: The main aim of this research is the development of a finite element code based on the strain gradient theory able to deal with thin laminated plates in the framework provided by Kirchhoff hypotheses. Therefore, […]

Large-Eddy Simulation of Reactive Flow in Rocket Engine Combustion Chamber and Turbine Stages

TIME: 3:30 PM LOCATION: GMCS 314 SPEAKER: Feng Liu, University of California, Irvine, Department of Mechanical and Aerospace Engineering ABSTRACT: Simulation of three-dimensional unsteady reactive flows pose major challenges to computational methods for engineering applications. In this talk, I will present an efficient, accurate, and robust Computational Fluid Dynamics software package for various multi-disciplinary engineering […]

CombOpNet: Scaling SINDy for High-Dimensional Dynamical Systems

TIME: 3:30 PM LOCATION: GMCS 314 SPEAKER: Siyuan Xing, California Polytechnic State University, San Luis Obispo ABSTRACT: In this talk, we introduce the Combinatorial Operation Neural Network (CombOpNet), a compact neural architecture designed to overcome the curse of dimensionality in Sparse Identification of Nonlinear Dynamics. Within CombOpNet, nonlinear terms in dynamical equations are represented by […]

High-order modeling of long dispersive water waves

TIME: 3:30 PM LOCATION: GMCS 314 SPEAKER: Christos Papoutsellis, University of California, San Diego ABSTRACT: Accurately predicting the intricate dynamics of water waves is essential for advancing our understanding of the marine environment. The modeling of long waves plays a critical role in applications such as tsunami prediction, extreme wave simulations, and wave interactions with […]