Loading...
Organizing Committee
University of Zurich
University of Arkansas
Johns Hopkins University
Abstract
Understanding the dynamics of unpredictable systems such as turbulent mixing and combustion has been one of the most important and challenging problems in scientific and engineering applications. The validation, verification, and uncertainty quantification (VVUQ) studies are crucial to achieving reliable and accurate results through high-fidelity multi-physics and multi-scale modeling and simulations. This workshop honors Dr. James Glimm, member of the National Academy of Science and the American Academy of Arts and Sciences, and winner of the National Medal of Science for his outstanding contributions to computational fluid dynamics.
The workshop themes include analysis, modeling, and computation of partial differential equations and applications in turbulent mixing and combustion. The workshop will bring together researchers to highlight recent advances and challenges in modeling and simulations of realistic fluid flows. Topics will include: (1) interface instabilities; (2) mixing in multiphase flows; (3) turbulence models; (4) scalable solvers; (5) uncertainty quantification; and (6) applications in nature and technology.
The workshop themes include analysis, modeling, and computation of partial differential equations and applications in turbulent mixing and combustion. The workshop will bring together researchers to highlight recent advances and challenges in modeling and simulations of realistic fluid flows. Topics will include: (1) interface instabilities; (2) mixing in multiphase flows; (3) turbulence models; (4) scalable solvers; (5) uncertainty quantification; and (6) applications in nature and technology.
Loading...
Loading participant list in background...
Workshop Schedule
Saturday, September 07, 2024
8:30 - 8:45 AM EDT
Check In
11th Floor Collaborative Space
8:45 - 8:55 AM EDT
Welcome
11th Floor Lecture Hall
Brendan Hassett, ICERM/Brown University
8:55 - 9:00 AM EDT
Opening Remarks
11th Floor Lecture Hall
Tulin Kaman, University of Arkansas
9:00 - 10:00 AM EDT
Second Order Phase Transitions
11th Floor Lecture Hall
Speaker
James Glimm, Stony Brook University
Session Chair
Tulin Kaman, University of Arkansas
Abstract
Second order phase transitions describe in a macroscopic manner the decay of energy of a physical system
Applied to fluid turbulence, they lead to a proof of existence of non-smooth solutions for the Navier-Stokes equation, with the mathematical proof outlined here.
Applied to Yang-Mills quantum fields, they give rise to the mass gap, a Millenium Prize problem.
Applied to cosmology and astrophysics, they support a novel explanation for dark matter and dark energy.
10:15 - 11:00 AM EDT
11:00 - 11:40 AM EDT
Exascale DNS and time-dependent reduced order model of turbulent premixed ammonia/hydrogen jet flames for power generation
11th Floor Lecture Hall
Speaker
Jacqueline Chen, Sandia National Laboratories
Session Chair
Tulin Kaman, University of Arkansas
11:55 AM - 12:35 PM EDT
State Redistribution on Adaptive Mesh Hierarchies with Embedded Boundaries
11th Floor Lecture Hall
Speaker
Ann Almgren, Lawrence Berkeley National Laboratory
Session Chair
Tulin Kaman, University of Arkansas
12:50 - 12:55 PM EDT
Group Photo (Immediately After Talk)
11th Floor Lecture Hall
12:55 - 2:00 PM EDT
Lunch/Free Time
2:00 - 2:40 PM EDT
High-order finite-volume methods on locally structured grids: algorithms and software.
11th Floor Lecture Hall
Speaker
Phillip Colella, Lawrence Berkeley National Laboratory
Session Chair
Jacqueline Chen, Sandia National Laboratories
Abstract
We will discuss current work on fourth-order accurate finite-volume methods for conservation laws on locally-rectangular adaptive grids, including discretization methods for mapped-multiblock coordinate systems, and the use of embedded domain-specific languages and run-time compilation for obtaining high performance and high productivity on CPU and GPU-based systems. We will illustrate the use of these methods for CFD calculations in spherical geometries.
2:55 - 3:20 PM EDT
Coffee Break
11th Floor Collaborative Space
3:20 - 4:00 PM EDT
Inverse Lax-Wendroff Procedure for Numerical Boundary Conditions
11th Floor Lecture Hall
Speaker
Chi-Wang Shu, Brown University
Session Chair
Jacqueline Chen, Sandia National Laboratories
Abstract
When solving partial differential equations, finite difference methods have the advantage of simplicity, however they are usually only designed on Cartesian meshes. In this talk, we will discuss a class of high order finite difference numerical boundary condition for solving hyperbolic Hamilton-Jacobi equations, hyperbolic conservation laws, and convection-diffusion equations on complex geometry using a Cartesian mesh. The challenge results