Vimaldoss Jesudhas
University of Windsor, Windsor, Ontario, N9G 3P4, Canada
Ram Balachandar
University of Saskatchewan, Collage of Engineering, 57 Campus Drive, Saskatoon, S7N 5A9; Mechanical, Automotive and Materials Engineering, University of Windsor, Windsor, Ontario, N9B3P4, Canada; Department of Civil and Environmental Engineering, University of Windsor, Windsor, Ontario, N9B 3P4, Canada
Ron M. Barron
Department of Mechanical, Automotive & Materials Engineering, University of Windsor, Canada; Department of Mathematics and statistics, University of Windsor, Canada
Offset jets are formed when a jet emanates from a nozzle of finite aspect ratio at an elevation from the channel
bed. Submerged offset jets are often encountered as energy dissipation devices in hydraulic structures, mixing of
effluents in rivers and streams etc. CFD study of a submerged offset jet (offset ratio 4) emanating from a nozzle
into an open channel was carried out using the Improved Delayed Detached Eddy Simulation (IDDES). The free
surface was captured using the volume of fluid (VOF) with High Resolution Interface Capturing (HRIC) scheme.
The complex three-dimensional flow features of the offset jet captured by the simulation is qualitatively analysed
by examining the vorticity field. The complexity of the offset jet flow field also serves to evaluate turbulence
models used in CFD. The present study also serves as a benchmark for assessing the performance of the IDDES
turbulence model.