My publications and presentations are online.

Water stream break-up and trajectory

I am researching break-up of liquid jets and the subsequent trajectory they take. Relatively little research has been conducted for the latter. The goals are to understand the factors influencing the trajectory of a water jet, predict the trajectory of a water jet, and improve the range of water jets, with fire hose streams in mind as the application.

Lagrangian particles in FDS

For NIST, I developed and tested Lagrangian particle methods for the Fire Dynamics Simulator. Examples of Lagrangian particles include water droplets from fire suppression systems and fuel droplets. Most recently I worked on improving energy and momentum conservation and energy and momentum transfer, especially in periodic and multi-mesh domains. I have also studied numerical diffusion caused by particles traveling not aligned to the grid.

Collaborators: Randy McDermott, Topi Sikanen