Abstract
Velocity fields of parallel circular jets were investigated experimentally. Air jets were issued from circular orifices arrayed at an equal interval in a line. Velocity was measured by a single normal hot wire probe, and mean velocity and turbulence intensity of the parallel circular jets were discussed to understand interaction and deformation of vortex rings, particularly focusing on an influence of the interval of the parallel jets. The experimental results suggest that the shape of vortex rings are deformed by the mutual induced velocity among vortex rings arrayed side by side, and the induced velocity of the deformed vortex rings may enhance or suppress the jet properties such as diffusion and entrainment.
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