Modifications to SOLA-VOF for Flow Dynamics in Spinning Cylinders

摘要

Fluid dynamic processes within spinning containers involve many complex phenomena. Boundary layer effects and free surface motions can be strongly coupled with angular momentum effects to produce highly complex flow structures. This situation exists in fluid-filled projectiles. This report describes a major extension to the SOLA-VOF computer program, which is described in Los Alamos Scientific Lab Rept. LA-8355, 1980. The modified code now has the capability to treat axisymmetric rotating flows with or without free surfaces and rotating flows of two fluids with a well-defined interface. For efficiency, the original code has also been modified to have a better hydrostatic pressure setup and a new pressure solution algorithm, called SADI, which is a user selectable option. Additionally, several code updates, that correct minor errors or improve accuracy, have been added to this version of SOLA-VOF. The modified code is referred to as SOLA-VOF/CSL in recognition of the Chemical Systems Lab, which sponsored this development.