Abstract

A theoretical consideration is given on the behaviour of gas bubbles in blood subjected to an oscillating pressure, as one of the fundamental studies on hemolysis and cavitation in blood. The natural frequency of a bubble in blood is obtained. Over the range whose frequencies of the oscillating pressure are from 300 Hz to 300 kHz, the oscillating form of a bubble and the pressure occurring during the bubble oscillation are numerically clarified. Consequently, it is found that when the frequencies of oscillating pressure are lower than the natural frequency of the bubble, the bubble in blood generates fairly high pressure.

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