Abstract
▪ Numerical results of a turbulent impinging jet on a flat plate are compared with experimental reference data from ERCOFTAC. Four different jet-to-plate distances from H/D=2 to 14 have been considered at a jet Reynolds number of 23,000. Local flow and heat transfer characteristics are analyzed using the SST turbulence model by Menter and an additional turbulence production limiter by Kato and Launder. For the smaller jet-to-plate distances of H/D=2 and 6, the Kato–Launder turbulence production limiter reproduces the heat transfer in the stagnation region very well. At the higher values H/D=10 and 14, the modification underpredicts the reference data.The near-wall grid resolution at the target plate has been varied for a jet-to-plate distance of H/D=6. The results show the influence of the dimensionless distance of the first node near the wall on flow and heat transfer characteristics. A comparison of a hybrid and a block-structured grid assesses the influence on the mesh topology.
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