My research interests focus on the application of numerical simulations to complex systems containing a large range of length scales and time scales.
Applications involve particle dynamics, fluid mechanics and solid mechanics.
The goal is to model the essential physics of the problem in as simple and fundamental a way as possible, making minimal use of unknown parameters. The resulting algorithms are very straightforward to program, very efficient, and easy to parallelize. D. L. Koch and A. J. C. Ladd. Moderate Reynolds number flows through periodic and random arrays of aligned cylinders. A. J. C. Ladd and J. H. Kinney.