Studying fluid-solid interaction (FSI) problems involves several aspects of scientific computing. Perhaps the more remarkable aspect is that in our group we use a Lagrangian-Lagrangian framework to tackle FSI problems. In this area, our technical …

# Current Projects

## Chrono Benchmarking for Next Generation NATO Reference Mobility Model (NG-NRMM)

As part of the development of the Next Generation NATO Reference Mobility Model (NG-NRMM), UW-Madison participated in an industry-wide multibody-dynamics simulation benchmarking activity that occurred in 2016 and 2017. Out of all the participants, Chrono …

## Accelerating Nonlinear Finite Element Formulations for Multibody Dynamics

Although formulations have been developed for integrating nonlinear flexible bodies within multibody dynamics frameworks, the runtime performance of these formulations is slow to the point where their usefulness is questionable. In this project, we seek …

## Representing Fluid Dynamics as a Rigid-Body Dynamics Problem with Friction and Contact

The purpose of this project is to understand whether fluid motion can be accurately represented as a very large collection of rigid spheres. The motion of fluids is traditionally modeled using the Navier-Stokes equations, whereas …

## Distributed-Memory Granular Simulation

Granular material on nearly any practical scale involves computing the dynamics of billions of bodies. In order to generate high-resolution predictions for the behavior of granular material, a simulation must track each of the multiple …

## SPIKE GPU – An Implementation of a Recursive Divide-And-Conquer Parallel Strategy for Solving Large Systems of Linear Equations

This project proposes to investigate, produce, and maintain a methodology and its software implementation that leverage emerging heterogeneous hardware architectures to solve billion-unknowns linear systems in a robust, scalable, and efficient fashion. The two classes …

## Coupled Fluid-Flexible Body Investigation Using Chrono::Fluid

The interaction of fluid-flexible bodies was studied via a Lagrangian-Lagrangian framework, relying on Smoothed Particle Hydrodynamics, a general 3D rigid body dynamics, and an Absolute Nodal Coordinate Formulation (ANCF). The dynamics of the two phases, …

## Characterization of Xeon Phi with Linear Algebra Workloads

The efforts behind this independent study are to analyze how well suited Xeon Phi is for some frequently used linear algebra routines such as factorization and solvers. We are working with Intel MKL 11.1 on …

## Performance Analysis of CULA on different NVIDIA GPU Architectures

The CULA is a next generation linear algebra package that uses the GPU as a co-processor to achieve speedups over existing linear algebra packages. CULA supports matrix inversion operation which helps in solving and factorizing …

## Performance Comparison Study between NVIDIA Fermi and Kepler Architecture

A comparative study between Nvidia Fermi and Kepler architectures are being undertaken. The key aspects being targeted are performance scaling for computational kernels like tiled matrix multiplication, memory transfer behavior, gains using streaming and performance …