The UMIST-N Near-Wall Treatment Applied to Periodic Channel Flow

CHAPTER 5. RESULTS 82
steady flow results. In order to reconcile the two models, it was proposed
that a blending function similar to that used by the SST model [42] may be
required. The development effort was stopped because the added complexity
would have compromised the relevance of the UMIST-N approach.
The UMIST-N approach has been successfully applied to periodic flow. The
subgrid calculation offers discernibly different results than the standard low-
Reynolds-number k-ε model, but neither may readily be identified as supe-
rior. Therefore, the UMIST-N approach is applicable to periodic flow. The
potential breadth of applicability of the approach is further indicated by its
application to a k-ω model solution, although the challenge of obtaining main
grid boundary conditions with the k-ω model is highlighted by these results.