Experimental investigation of liquid jet outflow into a plane ventilated channel in self-oscillatory regimes |
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Authors: | I I Kozlov S A Ocheretyanyi V V Prokof’ev |
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Abstract: | The results of an experimental investigation of self-oscillatory jet outflow into a plane channel with air injection in its
dead-ended part are presented. It is found that at fixed channel geometry and water supply system the main flow parameters
depend on the air injection rate and the relative cavity volume. It is shown that with increase in the gas injection at a
fixed cavity volume the self-oscillation intensity monotonically increases and the oscillations considerably change in nature,
whereas the Strouhal number varies only slightly. At a fixed air injection coefficient the self-oscillation amplitude decreases
with increase in the cavity volume and the self-oscillations stop at a certain threshold value. The flow pattern evolution
with increase in the injection coefficient is studied in detail using high-speed filming. The developed surge flow pattern
is described in detail. |
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