Rezumat
CZU 532:538.4
DOI https://doi.org/10.5281/zenodo.2551223
A method to measure the frequency of vapor bubbles formation in the boiling of opaque fluids using a two-layer system: an opaque – transparent medium, is proposed and implemented. An experimental setup has been developed and experiments have been carried out to determine the frequency of the formation of vapor bubbles during the boiling of opaque liquids. The frequency of the formation of vapor bubbles is measured in the boiling of a two-layer medium of magnetic-nonmagnetic liquids on a horizontal surface with pointwise heat input in a uniform external magnetic field. It is found that with an increase in the strength of a uniform constant magnetic field, the frequency of the formation of vapor bubbles upon boiling of a two-layer medium of magnetic-non-magnetic liquids on an unbounded horizontal plate decreases while the temperature of the heat-releasing surface at which the vapori-zation process begins increases for samples of magnetic liquids with a high magnetic phase content.
Keywords: magnetic fluid, heat transfer, hydrody-namics, magnetic field, steel hardening.