ISSN Online: 2377-424X
International Heat Transfer Conference 12
Fluid dynamics measurements and optical visualization of the evolution of a submerged slot jet of air
Аннотация
Hot wire anemometry has been used to measure velocity and turbulence distributions at the exit of a slot jet as
well as at several distances from it. The evolution of the jet flow, entering into stagnant air, has been investigated
to determine the structure of the potential core and the developed region. The interest in the physical
understanding of the jet evolution has promoted the present study. A visualization technique has been used and
the results compared to the hot wire anemometry measurements. The length of the potential core has been
visualized using a shadowgraph visualization technique. This technique has been used because of its simple setup,
which does not require special accuracy in the optics. Further on, it has been employed because of the kind of
information to be searched, which consists, essentially, in the evolution of the potential core of the air jet
entering into stagnant air. The visualization has shown interesting aspects of the air jet as compared to the actual
knowledge of jet flow.