1.
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics
; 61(5B): 5439-44, 2000 May.
Artigo
em Inglês
| MEDLINE
| ID: mdl-11031596
RESUMO
Boger fluids are used to study viscous fingering growth in viscoelastic fluids in channel Hele-Shaw flow. We have found that the viscous finger growing in the Boger fluid is unstable to tip splitting at high velocities, in a regime where a Newtonian viscous finger is stable. No fracturelike instabilities were observed. We show that the viscoelastic normal stress differences arising in shear and extensional flow reach very high values at shear and extensional rates comparable to those achieved at the tip of the finger at the onset of tip splitting, and the fluid becomes highly anisotropic. The viscoelastic stress could affect the dynamics of the finger and induce the tip-splitting instability.
2.
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics
; 54(2): 1625-1629, 1996 Aug.
Artigo
em Inglês
| MEDLINE
| ID: mdl-9965237
3.
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics
; 53(4): 3788-3793, 1996 Apr.
Artigo
em Inglês
| MEDLINE
| ID: mdl-9964690
4.
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics
; 53(1): 978-985, 1996 Jan.
Artigo
em Inglês
| MEDLINE
| ID: mdl-9964332
5.
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics
; 51(6): 5916-5921, 1995 Jun.
Artigo
em Inglês
| MEDLINE
| ID: mdl-9963331
6.
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics
; 51(2): 1184-1190, 1995 Feb.
Artigo
em Inglês
| MEDLINE
| ID: mdl-9962761
7.
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics
; 51(2): 1338-1343, 1995 Feb.
Artigo
em Inglês
| MEDLINE
| ID: mdl-9962776
8.
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics
; 48(2): 1601, 1993 Aug.
Artigo
em Inglês
| MEDLINE
| ID: mdl-9960761
9.
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics
; 47(6): 4278-4283, 1993 Jun.
Artigo
em Inglês
| MEDLINE
| ID: mdl-9960504
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