Viscous Fingering of Non-Newtonian Fluids in a Rectangular Hele-Shaw Cell.
-
- Yamamoto Takehiro
- Department of Mechanophysics Engineering, Graduate School of Engineering, Osaka University
-
- Kamikawa Hiroo
- Department of Mechanophysics Engineering, Graduate School of Engineering, Osaka University
-
- Tanaka Hiromitsu
- Department of Mechanophysics Engineering, Graduate School of Engineering, Osaka University
-
- Nakamura Kiyoji
- Department of Mechanophysics Engineering, Graduate School of Engineering, Osaka University
-
- Mori Noriyasu
- Department of Mechanophysics Engineering, Graduate School of Engineering, Osaka University
Search this article
Abstract
Non-Newtonian viscous fingering in a rectangular Hele-Shaw cell was studied. Compressed air was injected into the cell filled with a more viscous fluid. For the more viscous fluids, glycerin was used as a Newtonian fluid, and aqueous solutions of carboxymethylcellulose (CMC) and polyacrylamide (PAA) were used as non-Newtonian fluids. The growth and the structure of viscous fingers were analyzed. The shear-thinning viscosity of the polymer solutions made the 'shielding' effect strong. When the 'shielding' appeared strongly, the fingers formed a branched structure. In the PAA solution, the change in the finger pattern, a sudden growth of thin fingers from a wide finger-tip, was observed. It was supposed that stretch-thickening elongational viscosity and the shear-thinning viscosity were related to this phenomenon.
Journal
-
- Nihon Reoroji Gakkaishi
-
Nihon Reoroji Gakkaishi 29 (2), 81-87, 2001
The Society of Rheology, Japan
- Tweet
Details 詳細情報について
-
- CRID
- 1390001205093622656
-
- NII Article ID
- 10019239352
- 30012644521
-
- NII Book ID
- AN00198812
-
- COI
- 1:CAS:528:DC%2BD3MXmsVKhurw%3D
-
- ISSN
- 21864586
- 03871533
-
- NDL BIB ID
- 5808926
-
- Text Lang
- en
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed