Accession Number:

ADA064175

Title:

Simulation of Three-Dimensional Turbulent Flows with a Vortex-in-Cell Method.

Descriptive Note:

Technical rept.,

Corporate Author:

STANFORD UNIV CALIF INST FOR PLASMA RESEARCH

Personal Author(s):

• Couet,Benoit
• Buneman,Oscar
• Leonard,Anthony

Report Date:

1979-01-01

Pagination or Media Count:

38.0

Abstract:

A new method for the numerical simulation of three-dimensional incompressible flows is described. Our vortex-in-cell VIC method traces the motion of the vortex filaments in the velocity field these filaments create on an Eulerian mesh via the fast integration of a Poisson equation. By incorporating the viscous or subgrid-scale effects into a filtering procedure, the computed scales of motion are assumed to be essentially inviscid. Results on tracing a periodic array of single vortex rings are compared with a Greens function calculation. Author

Descriptors:

• *TURBULENT FLOW
• *INCOMPRESSIBLE FLOW
• *THREE DIMENSIONAL FLOW
• MATHEMATICAL MODELS
• VORTICES
• FAST FOURIER TRANSFORMS
• GREENS FUNCTIONS
• INVISCID FLOW
• POISSON EQUATION

Subject Categories:

• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE