Nonlinear Physics and Fluid Dynamics Lab

Recent Publications

Granular Materials

"Internal Granular Dynamics, Shear-induced Crystallization, and Compaction Steps", J-C Tsai, Greg A. Voth, J.P. Gollub, Phys. Rev. Lett. 91, 064301 (Aug 8, 2003) , Preprint (pdf format, 1.3Mb)
"Ordered clusters and dynamical states of particles in a vibrated fluid", Greg A. Voth, B. Bigger, M.R. Buckley, W. Losert , M.P. Brenner, H.A. Stone, and J.P. Gollub, Phys. Rev. Lett. 88, 234301 (2002), Preprint, (pdf format, 0.5Mb).
"Two-dimensional granular Poiseuille Flow on an incline: multiple dynamical regimes", J-C Tsai, W. Losert, G.A. Voth, and J.P. Gollub, Phys. Rev. E 65, 011306 (2002)
"Granular Shear Flow Dynamics and Forces : Experiment and Continuum Theory", L. Bocquet, W. Losert, D. Schalk, T.C. Lubensky, J.P. Gollub, Phys. Rev. E 65, 011307 (2002), preprint available at: cond-mat/0012356
"Particle dynamics in sheared granular matter," W. Losert, L. Bocquet, T.C. Lubensky, J.P. Gollub, Phys. Rev. Lett. 85, 1428 (2000), preprint available at: cond-mat/0004401
"Mechanisms for slow strengthening in granular materials," W. Losert, J.-C. Geminard, S. Nasuno, and J.P. Gollub, Phys. Rev. E, 61 4060 (2000), preprint available at cond-mat/9909330.
"Friction in sheared granular material,"W. Losert, J.-C. Geminard, S. Nasuno, and J.P. Gollub, Symposium on Tribology, M. Robbins, Ed., (Materials Research Society, San Jose, CA, 1999).
"Velocity statistics in vibrated granular media", W. Losert, D.G.W. Cooper, J. Delour, A. Kudrolli, and J.P. Gollub, Chaos 9, 682 (1999), preprint available at cond-mat/9901203 (1999).
"Propagating front in an excited granular layer", W. Losert, D.G.W. Cooper, and J.P. Gollub, Phys. Rev. E, 59, 5855 (1999). Preprint available at cond-mat/9812089.
"Frictional Mechanics of Wet Granular Material", J.-C. Geminard, W. Losert, and J.P. Gollub, Phys. Rev. E, 59, 5881 (1999). Preprint available at cond-mat/9811262.
"Time-resolved studies of stick-slip friction in sheared granular layers", S. Nasuno, A. Kudrolli, A. Bak, and J.P. Gollub, Phys. Rev. E. 58, 2161 (1998).
"Friction in granular layers: Hysteresis and Precursors", S. Nasuno, A. Kudrolli, and J.P. Gollub, Phys. Rev. Lett 79, 949 (1997).
"Cluster formation due to collisions in granular material", A. Kudrolli, M. Wolpert, and J.P. Gollub, Phys. Rev. Lett. 78 1383 (1997).
``Sensitive force measurements in sheared granular flow with simultaneous imaging'', S. Nasuno, A. Kudrolli, and J.P. Gollub, Powders and Grains 97, (Balkema, 1997).
``Studies of cluster formation due to collisions in granular material'', A.Kudrolli, and J.P.Gollub, Powders and Grain 97, (Balkema, 1997).

Fluid Mixing

"Experimental measurements of stretching fields in fluid mixing," Greg A. Voth, George Haller, and Jerry Gollub, Phys. Rev. Lett. 88, 254501 (2002), Preprint, (pdf format, 3.0Mb).
"Persistent patterns in transient chaotic fluid mixing," D. Rothstein, E. Henry and J.P. Gollub, Nature 401, 770 (1999).
"Mixing of a passive scalar in magnetically forced two-dimensional turbulence", B. Williams, D. Marteau, and J.P. Gollub, Physics of Fluids 9, 2061-80 (1997).

Faraday Waves

"Scarred patterns in surface waves," A. Kudrolli, Mathew C. Abraham, and J. P. Gollub, Phys. Rev. E 63, 026208 (2001).
"Localized spatiotemporal chaos in surface waves", A. Kudrolli, J.P. Gollub, Phys. Rev. E 54 R1052-55 (1996).
"Patterns and spatiotemporal chaos in parametrically forced surface waves: a systematic survey at large aspect ratio", A. Kudrolli and J.P. Gollub, Physica D 97 (1996) 133-154.

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