Abstract
PREVIOUSLY we have reported1 that polyethyleneoxide (Polyox) in solution reduced the damping of free oscillations in a semicircular manometer, whereas polyacrylamide (Separan: also an effective drag-reducer in turbulent flow) did not. Here we report the effect of these additives (Polyox grades WSR 301 and N3000; Separan grades AP 30, AP 273 and MG 200) on the pulsation noise radiated by small air bubbles in water.
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McCOMB, W., AYYASH, S. Effect of drag-reducing polymers on pulsation noise of small air bubbles. Nature 262, 47–48 (1976). https://doi.org/10.1038/262047a0
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DOI: https://doi.org/10.1038/262047a0
