Bubble changing features and buckle of the free liquid surface in the active oiled power transformer tank
CSEE Journal of Power and Energy Systems(2023)
Abstract
This study investigates bubble dynamics and the buckling behaviour of free liquid surfaces. Comsol multiphysics was used to analyze bubble formation and collapse in a rectangular tank. The number of apertures and the distance between them were studied to determine their effect on bubble characteristics and interface deformation. In addition, the application comprised information regarding bubble creation, prevalence, and path. It discussed the phenomenon of bubbling based on various heated cavities. There are minutiae concerning the coexistence of bubble collapse aftermaths of single, double, and triple inlet cavity sources. Data analysis indicates the likelihood of bubble detachment hikes with increasing cavity count. However, bubble leaving frequency decreases with increased source spacing. We realized that the growth and bubble could extend the base by raising the wall temperature, but it curtailed the bubble removal diameter and time. Whenever an electric field is strong, more bubbles leave the superheat cavity, and the bubbles' size decreases. The fallout shows that changes in these geometric criteria considerably impact the deformation of free liquid surfaces caused by bubble bursting and other bubble characteristics. The above characteristics of bubbles under combined stress provide an understanding of one source of stream development in the power transformer. Using the results from these studies, it is possible to design a device for bubble generation, reliable and efficient.
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Key words
multiphase flow,the impact of coupled stresses,bubble migration,electric field,vibration,power transformer
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