A LOCAL MESH REFINEMENT ALGORITHM APPLIED TO TURBULENT FLOW

✍ Scribed by PETER EMVIN; LARS DAVIDSON

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 741 KB
• Volume: 24
• Category: Article
• ISSN: 0271-2091
• DOI: 10.1002/(sici)1097-0363(19970315)24:5<519::aid-fld530>3.0.co;2-m

✦ Synopsis

This paper presents a local mesh re®nement procedure based on a discretization over internal interfaces where the averaging is performed on the coarse side. It is implemented in a multigrid environment but can optionally be used without it. The discretization for the convective terms in the velocity and the temperature equation is the QUICK scheme, while the HYBRID-UPWIND scheme is used in the turbulence equations. The turbulence model used is a two-layer k±e model. We have applied this formulation on a backward-facing step at Re 800 and on a three-dimensional turbulent ventilated enclosure, where we have resolved a geometrically complex inlet consisting of 84 nozzles. In both cases the concept of local mesh re®nements was found to be an ef®cient and accurate solution strategy.