Studies on Effect of Pitch on the Merging Characteristics of Isothermal Two Dimensional Twin Jets Using CFD

Jets have been the subject of experimental and numerical research for over five decades. Plane jets and multiple jets are used in verity of applications especially in heating and ventilation. In these applications parameters like the jet spread rate and potential core decay play a strong role in deciding the mixing properties. Shear layer is the region in which most of the interactions and mixing between the ambient and jet fluid takes place. In multiple jet interaction the shear layer of the individual jets will interact with themselves and with the ambient fluid, apart from this the potential core of the individual jets will interact with each other making the mixing and merging process more complex. In the present study the interaction of different isothermal two dimensional twin jet models are studied by varying the diameter of the jets and the linear distance (Pitch) between the jets.