Deformation and Flow of a Two-Dimensional Foam under Continuous Shear Export

@article{debregeas01, abstract = {We investigate the flow properties of a 2D foam (a confined monolayer of jammed bubbles) submitted to a continuous shear in a Couette geometry. A strong localization of the flow at the moving inner wall is evidenced. Moreover, velocity fluctuations measurements reveal self-similar dynamical structures consisting of clusters of bubbles moving coherently. A stochastic model is proposed where bubbles rearrangements are activated by local stress fluctuations produced by the shearing wheel. This model gives a complete description of our observations and is also consistent with available data on granular shear bands.}, author = {Debr\'{e}geas, G. and Tabuteau, H. and di Meglio, J. M.}, citeulike-article-id = {2722834}, citeulike-linkout-0 = {http://dx.doi.org/10.1103/PhysRevLett.87.178305}, citeulike-linkout-1 = {http://link.aps.org/abstract/PRL/v87/i17/e178305}, citeulike-linkout-2 = {http://link.aps.org/pdf/PRL/v87/i17/e178305}, doi = {10.1103/PhysRevLett.87.178305}, journal = {Physical Review Letters}, keywords = {experiment, foam, shear, theory}, month = {October}, number = {17}, pages = {178305+}, posted-at = {2009-07-01 15:00:30}, priority = {2}, publisher = {American Physical Society}, title = {Deformation and Flow of a Two-Dimensional Foam under Continuous Shear}, url = {http://dx.doi.org/10.1103/PhysRevLett.87.178305}, volume = {87}, year = {2001} }

TY - JOUR ID - debregeas01 L3 - citeulike-article-id:2722834 N2 - We investigate the flow properties of a 2D foam (a confined monolayer of jammed bubbles) submitted to a continuous shear in a Couette geometry. A strong localization of the flow at the moving inner wall is evidenced. Moreover, velocity fluctuations measurements reveal self-similar dynamical structures consisting of clusters of bubbles moving coherently. A stochastic model is proposed where bubbles rearrangements are activated by local stress fluctuations produced by the shearing wheel. This model gives a complete description of our observations and is also consistent with available data on granular shear bands. IS - 17 JF - Physical Review Letters TI - Deformation and Flow of a Two-Dimensional Foam under Continuous Shear PB - American Physical Society VL - 87 SP - 178305 KW - experiment KW - foam KW - shear KW - theory AU - Debrégeas, G AU - Tabuteau, H AU - di Meglio, JM PY - 2001/10// UR - http://dx.doi.org/10.1103/PhysRevLett.87.178305 ER -