Author(s): H. Alfaifi; A. Mohammadian; H. Kheirkhah Gildeh
Linked Author(s):
Keywords: Offset jet; Buoyancy; Salinity; Discharge; Realizable k-ε
Abstract: This paper focuses on some of the near-field mixing zone characteristics of industrial effluent discharge (e.g. desalination plants). Experimental and numerical studies of thermal and non-thermal buoyant offset jet discharged from submerged outfall into calm ambient water with different concentration (salinity) were conducted. Two experiments with different ambient water concentration and temperature but same densimetric Froude numbers (Fd=20) are conducted to study the salinity effect on the jet trajectory. In this study, the non-thermal experiment showed that the source of buoyance (salinity versus temperature for the same Froude Number) can affect the jet trajectory. Furthermore, two different Reynolds-averaged NavierStokes (RANS) turbulence models; Realizable and Launder-Reece-Rodi (LRR) were applied in this study. The comparison between experimental and numerical results for the jet trajectory is presented. A reasonable agreement between the Realizable k-ε model and experimental results was observed in this study.
Year: 2016