Abstract. An accurate finite element Navier-Stokes solver is presented to simulate axis-symmetric and three-dimensional incompressible jets. It is based on a multilevel approach where the Volume-of-Fluid (VOF) scalar function is defined on a high resolution grid and then is projected on a coarser grid where the velocity field is computed. With this approach it is possible to consider grid spacings that ensure a high value of the ratio between the local radius of the interface curvature and the cell size even for three-dimensional computational domains. Since the number of cut cells is usually much smaller than the total number of cells in the computational domain, we have implemented a compact memorization of the VOF data based on a sparse matrix storage approach.
A. Cervone, S. Manservisi, R. Scardovelli (2009). Simulation of Jets with a Finite Element Navier-Stokes Solver and a Multilevel VOF Approach. VEIL : University of Denver.
Simulation of Jets with a Finite Element Navier-Stokes Solver and a Multilevel VOF Approach
MANSERVISI, SANDRO;SCARDOVELLI, RUBEN
2009
Abstract
Abstract. An accurate finite element Navier-Stokes solver is presented to simulate axis-symmetric and three-dimensional incompressible jets. It is based on a multilevel approach where the Volume-of-Fluid (VOF) scalar function is defined on a high resolution grid and then is projected on a coarser grid where the velocity field is computed. With this approach it is possible to consider grid spacings that ensure a high value of the ratio between the local radius of the interface curvature and the cell size even for three-dimensional computational domains. Since the number of cut cells is usually much smaller than the total number of cells in the computational domain, we have implemented a compact memorization of the VOF data based on a sparse matrix storage approach.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
