The technical staff at Sandia National Laboratories have access to High Performance Computing (HPC) Production Clusters for solving, visualizing, and interpreting large, complex science and engineering problems. Currently there are 4 such Linux clusters available, Sky Bridge, Chama, Uno and Ghost, with a total of over 75,000 processing cores. The Water Power Technologies department utilizes these resources to perform mid- and high-fidelity modeling with parallel simulation software such as SNL-Delft3D, SNL-SWAN, OpenFOAM, and Star-CCM+.