Purpose of the Simulation
Team for Advanced Flow Simulation and Modeling logo

Introduction Home Domains

Purpose of the Simulation

  • We wish to study the flow of water over the spillway of the Ohio River Olmsted Dam.
  • The domain is large, but its repetitive geometry suggests the use of periodic boundary conditions.
  • A simulation had been performed using a relatively large slice of the domain, requiring a mesh with a large amount of elements.
  • Within that subdomain (fig. A), the geometry is still periodic. (The image only shows the spillway and the concrete obstacles.)
AB
  • This periodicity can be further exploited by performing the simulation on an even smaller slice of the domain (fig. B).
  • The smaller size of this new subdomain means that fewer elements are needed to achieve the same resolution. This translates into less processing time.
  • Results of this faster simulation must be compared to the previous results.

Animation:
Matching velocity vectors on periodic boundaries
(MPEG, 1MB)


Introduction Home Domains