Calculation of the flow past a surface-mounted cube with two-layer turbulence models

In 3-D steady calculations of the flow around a cube placed in developed-channel flow, various versions of the k-epsilon model were tested. For the near-wall treatment, standard wall functions were employed, as well as the two-layer approach in which the viscous sublayer is resolved with a one-equation model. Two versions of the one-equation model were tested. In addition, calculations were carried out with the Kato-Launder (1993) modification of the k-epsilon model which eliminates excessive turbulence production in stagnation regions. The various predictions are compared with the measurements of Martinuzzi and Tropea (1993).