[article]
| Titre : |
The drag coefficient and the shape for a single bubble rising in non-newtonian fluids |
| Type de document : |
texte imprimé |
| Auteurs : |
Shaobai Li, Auteur ; Youguang Ma, Auteur ; Shaokun Jiang, Auteur |
| Année de publication : |
2012 |
| Article en page(s) : |
04 p. |
| Note générale : |
fluids engineering |
| Langues : |
Anglais (eng) |
| Mots-clés : |
bubble dragcoefficient non-newtonian fluids bubble shape |
| Index. décimale : |
620.1 Essais des matériaux. Défauts des matériaux. Protection des matériaux |
| Résumé : |
The dynamical characteristic of a single bubble rising in non-Newtonian fluid was investigated experimentally. The bubble aspect ratio and rising velocity were measured by high speed camera. The shape regimes for bubbles in non-Newtonian fluids was plotted by means of Reynolds number Re, Eötvös number Eo and Morton number Mo. The effects of bubble shape and liquid rheological property on the total bubble drag coefficient were studied. A new empirical drag coefficient correlation covering spherical bubble and deformed bubble was proposed, the predicted results shows good conformity to experimental values over a wide range of 0.05 |
| DEWEY : |
620.1 |
| ISSN : |
0098-2202 |
| En ligne : |
http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JFEGA4000134000008 [...] |
in Transactions of the ASME . Journal of fluids engineering > Vol. 134 N° 8 (Août 2012) . - 04 p.
[article] The drag coefficient and the shape for a single bubble rising in non-newtonian fluids [texte imprimé] / Shaobai Li, Auteur ; Youguang Ma, Auteur ; Shaokun Jiang, Auteur . - 2012 . - 04 p. fluids engineering Langues : Anglais ( eng) in Transactions of the ASME . Journal of fluids engineering > Vol. 134 N° 8 (Août 2012) . - 04 p.
| Mots-clés : |
bubble dragcoefficient non-newtonian fluids bubble shape |
| Index. décimale : |
620.1 Essais des matériaux. Défauts des matériaux. Protection des matériaux |
| Résumé : |
The dynamical characteristic of a single bubble rising in non-Newtonian fluid was investigated experimentally. The bubble aspect ratio and rising velocity were measured by high speed camera. The shape regimes for bubbles in non-Newtonian fluids was plotted by means of Reynolds number Re, Eötvös number Eo and Morton number Mo. The effects of bubble shape and liquid rheological property on the total bubble drag coefficient were studied. A new empirical drag coefficient correlation covering spherical bubble and deformed bubble was proposed, the predicted results shows good conformity to experimental values over a wide range of 0.05 |
| DEWEY : |
620.1 |
| ISSN : |
0098-2202 |
| En ligne : |
http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JFEGA4000134000008 [...] |
|
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