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
Palavras-chave:
thermo-hydraulics, nuclear reactors, Taylor bubble, stagnant liquid, cylindrical inclined tubes, pulse-echo ultrasonic techniqueResumo
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.Referências
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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Publicado
2021-07-08
Como Citar
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. Recuperado de https://revistas.ien.gov.br/index.php/ienprogressreport/article/view/351
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Seção
Engineering and Reactor Safety
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Copyright (c) 2018 Marcos Bertrand de Azevedo, José Luiz Horacio Faccini, Jian Su
Este trabalho está licenciado sob uma licença Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
