Simulation of Three-Dimensional Turbulent Flow in Non-Cartesian Geometry

✍ Scribed by Dalia Fishelov

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 817 KB
• Volume: 115
• Category: Article
• ISSN: 0021-9991
• DOI: 10.1006/jcph.1994.1193

✦ Synopsis

A three-dimensional simulation of turbulent (high Reynolds numbers) flow over a sphere was performed. We have applied vortex schemes by decomposing the physical region into two. The first is a thin layer near the sphere, where we have used a spherical coordirate system. The second is the rest of the physical domain, where we have applied the grid-free vortex method with a deterministic approximation to the viscous term. The results indicate constant growth in time of the (L_{2}) norm of the vorticity and concentration of the vorticity field in small portions of the region. (c) 1994 Academic Press, Inc.