Experimental study of the shapes of single Taylor bubbles rising in stagnant liquid inside vertical and slightly inclined columns by using a pulse-echo ultrasonic technique
Keywords:
thermo-hydraulics, nuclear reactors, Taylor bubble, stagnant liquid, cylindrical inclined tubes, pulse-echo ultrasonic techniqueAbstract
This paper presents an experimental study of single Taylor bubbles rising in vertical and slightly inclined tubes containing stagnant mixtures of water and glycerin, using a pulse-echo ultrasonic technique. The bubbles were generated by inverting the tubes partially filled with liquid. The rising velocity of the bubbles and the bubble profiles (bubble length vs film thickness) on its bottom, top and sides were measured. The results allow a better understanding of the behavior of bubbles, inside inclined cylindrical tubes, and their influence on interfacial parameters such as the bubble velocities.References
AZEVEDO, M. B.; FACCINI, J. L. H.; SU, J. . Estudo experimental dos perfis de bolhas de taylor individuais ascendendo em colunas verticais e inclinadas de líquido estagnado através de uma técnica ultrassônica de pulso-eco. IN: NATIONAL CONGRESS OF MECHANICAL ENGINEERING – CONEM, 9., Fortaleza, 2016. Anais… Rio de Janeiro: ABCM, 2016. Não paginado.
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Published
2021-07-08
How to Cite
de Azevedo, M. B., Faccini, J. L. H., & Su, J. (2021). Experimental study of the shapes of single Taylor bubbles rising in stagnant liquid inside vertical and slightly inclined columns by using a pulse-echo ultrasonic technique. Instituto De Engenharia Nuclear: Progress Report, (3), 112. Retrieved from https://revistas.ien.gov.br/index.php/ienprogressreport/article/view/351
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Engineering and Reactor Safety
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Copyright (c) 2018 Marcos Bertrand de Azevedo, José Luiz Horacio Faccini, Jian Su
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
