Acronym for Reynolds Stress Model This is a more accurate (and computationally intensive) second-moment closure turbulence model, which employs 6 equations for Reynolds Stress Transport along with the scalar turbulent dissipation rate rather than the 2 equation k-epsilon type turbulence model.
Response Surface Methodology. A statistical method that uses quantitative data from appropriate experiments to determine and simultaneously solve multivarient equations
Remote System Manager. Software that centralizes system management functions for multiple VAX computers. It provides software distribution, installation, backup, and restore services for VAX systems running the VMS operating system.