A laser method for studying bubble-boiling characteristics

A method developed for studying the boiling of a liquid in a large volume i s based on recording changes in the intensity of a laser beam propagating i n the direction normal to a horizontally positioned cylinder. The method wa s tested in experiments with boiling water. The diameters with which bubble s are separated from the heat-releasing surface, the detachment frequency, and the surfacing velocity were evaluated and found to be in conformity wit h the known data. An advantage of this method is the possibility to promptl y measure a large set of boiling characteristics with a sufficiently high a ccuracy and reliability of measurements.