Investigation of shear banding in three-dimensional foams

Details Investigation of shear banding in three-dimensional foams Investigation of shear banding in three-dimensional foams

2010-07-23

arxiv.org/abs/1007.4133v2

Europhysics Letters (EPL) 91 (2010) 68005

Physics

Condensed Matter

Soft Condensed Matter

Scientific paper

10.1209/0295-5075/91/68005

We study the steady flow properties of different three-dimensional aqueous foams in a wide gap Couette geometry. From local velocity measurements through Magnetic Resonance Imaging techniques and from viscosity bifurcation experiments, we find that these foams do not exhibit any observable signature of shear banding. This contrasts with two previous results (Rodts et al., Europhys. Lett., 69 (2005) 636 and Da Cruz et al., Phys. Rev. E, 66 (2002) 051305); we discuss possible reasons for this dicrepancy. Moreover, the foams we studied undergo steady flow for shear rates well below the critical shear rate recently predicted (Denkov et al., Phys. Rev. Lett., 103 (2009) 118302). Local measurements of the constitutive law finally show that these foams behave as simple Herschel-Bulkley yield stress fluids.

Affiliated with

Also associated with

No associations

Rating

Investigation of shear banding in three-dimensional foams does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Investigation of shear banding in three-dimensional foams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Investigation of shear banding in three-dimensional foams will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-139038