• P-ISSN 0974-6846 E-ISSN 0974-5645

Indian Journal of Science and Technology


Indian Journal of Science and Technology

Year: 2013, Volume: 6, Issue: Supplementary 5, Pages: 1-6

Original Article

Computational Analysis of Mixing Characteristics of Jets from Rectangular Nozzle with Internal Grooves


A Computational study has been carried out to understand jet flow development from plain and grooved rectangular nozzles of aspect ratio 2:1. Grooves of square cross section of side 4mm and axial length 5mm were introduced at the exit of the nozzle in three different orientations as (i) minor-axis, (ii) major-axis and, (iii) in both minor and major axes. The computational studies were carried out using computational software ANSYS CFX for a nominal jet exit velocity of 20m/s. Velocity distribution along the axis of the jet is observed from computational results and compared with the available experimental results. Grooves seem to have very negligible effect on the near field region but significantly influence the jet decay in the far field.
Keywords: Passive Control, Jet Mixing Enhancement, Rectangular Jet and Center Line Velocity Decay


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