Abstract

In this report are discussed the self-excited oscillations due to air slugs in a V-tube connected with two reservoirs. The experimental results and calculated results are summarized as follows : (1) The parameters which control the periods and the amplitudes of self-excited oscillations are the number of air slugs supplied in a unit time and the flow rate of supplied air. (2) The periods of self-excited oscillations are from one to five or six times as large as those of free oscillations without any loss. (3) The waveforms of self-excited oscillations, including the change of the water level in reservoirs, are similar to those of relaxation oscillations.

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