Introducing Gerris to Rescale

Gerris is an open-source computational fluid dynamics (CFD) software developed by Dr. Stéphane Popinet at New Zealand's National Institute of Water and Atmospheric Research (NIWA), initially designed for modeling complex wind patterns but has found applications in diverse areas such as spacecraft re-entry dynamics and fuel injections. The software has been added to Rescale's library to support customer needs, and a demonstration involving a CFD analysis of 2D viscous flow around a heated cylinder was conducted to showcase its capabilities. This simulation visualizes the formation of a Bénard–von Kármán vortex street and examines how varying the cylinder's diameter affects turbulence, with findings indicating less uniform vortex patterns with larger diameters. Gerris offers a range of tutorials and examples online for new users, further supporting its accessibility and application versatility, while Rescale invites users to explore its broader efforts in the HPC cloud space.