Clark University 950 Main St Worcester, MA 01610 Tel: 508-793-7752 (office - BP-242) Tel: 508-793-7707 (laboratory - S231/232) Fax: 508-793-8861 Email: akudrolli@clarku.eduCV |

Physics 167, Fluid Dynamics and Applications

Arshad Kudrolli is a physicist and an experimentalist with an active research interest in granular matter, fluid dynamics, and applied mechanics. The systems he studies are typically nonlinear, driven, and far from equilibrium. Such systems display complex behavior and self-organization which often result from a few simple physical interactions between constituents. He has established the Complex Matter and Nonlinear Physics Laboratory and collaborates with researchers using experiments, simulations and theory to develop a deep understanding of such systems.

A major focus of his group's current research is on the interaction of granular matter and liquids leading to transport. This is important in many geophysical processes and energy industry related technologies including in the dynamics of sand dunes, erosion and deposition of sediments in rivers and channels, turbidity currents, slurry transport, and proppant deposition in hydraulic fracturing. His group is currently designing experiments which enable measurement of the local fluid and granular flow fields to develop a deeper understanding of particle laden flows. Techniques include fluorescent optical index matching, PIV, and micro X-ray computed tomography to study the microscopic response in addition to the macroscopic variables in the system. Other topics of interest include packing of granular spheres, rods and filaments, self-organization in active matter, and locomotion in Newtonian and non-Newtonian fluids.

Recent research presentations at the Kavli Institute of Theoretical Physics on granular erosion and on active matter can be found online.Arshad Kudrolli has been named an Alfred P. Sloan Research Fellow by the Sloan Foundation, and is a recipient of a Research Innovation Award from Research Corporation and a CAREER Award from the National Science Foundation. He was elected Fellow of the American Physical Society in 2010. His research is currently funded by the National Science Foundation, the Department of Energy, and the Petroleum Research Fund.

His background includes a post-doc in nonlinear physics and pattern formation with Jerry P. Gollub at Haverford College, and thesis work in Quantum Chaos using microwave techniques with S. Sridhar at Northeastern University.

**Publications**

- "Onset of erosion of a granular bed in a channel driven by fluid flow,"
Anyu Hong, Mingjiang Tao, Phys. Fluids
**27**, 013301 (2015). - "Pearling and arching instabilities of a granular
suspension on a super-absorbing surface,"
Julien Chopin and Arshad Kudrolli, Soft Matter
**11**, 659 (2015).

- "Epitaxial growth of ordered and disordered granular sphere packings,"
Andreea Panaitescu and Arshad Kudrolli, Phys. Rev. E
**90**, 032203 (2014). - "Effect of aspect ratio on the development of order in vibrated granular rods," Vikrant Yadav, Jean-Yonnel Chastaing, and Arshad Kudrolli, Phys. Rev. E
**88**, 052203 (2013). - "Helicoids, Wrinkles, and Loops in Twisted Ribbons," Julien Chopin and Arshad Kudrolli, Phys. Rev. Lett.
**111**, 174302 (2013). - "Book Review: An Introduction to Statistical Mechanics and Thermodynamics by Robert H. Swendsen," Arshad Kudrolli, Physics Today
**66**, 8:50 (2013). - "Speed of a swimming sheet in Newtonian and viscoelastic fluids," Moumita Dasgupta, Bin Liu, Henry C. Fu, Michael Berhanu, Kenneth S. Breuer, Thomas R. Powers, and Arshad Kudrolli, Phys. Rev. E
**87**, 013015 (2013). - "Diffusion of granular rods on a rough vibrated substrate," V. Yadav and A. Kudrolli, European Physical Journal E
**35**, 104 (2012). - "Shape and dynamics of seepage erosion in a horizontal granular bed," Michael Berhanu, Alexander Petroff, Olivier Devauchelle, Arshad Kudrolli, and Daniel H. Rothman, Phys. Rev. E
**86**, 041304 (2012). - "Flow-induced channelization in a porous medium ," A. Mahadevan, A. V. Orpe, A. Kudrolli and L. Mahadevan, EPL
**98**, 58003 (2012). - "Nucleation and Crystal Growth in Sheared Granular Sphere Packings," Andreea Panaitescu, K. Anki Reddy, and Arshad Kudrolli, Phys. Rev. Lett.
**108**, 108001 (2012). - "Four remarks on the growth of channel networks," A. P. Petroff, O. Devauchelle, A. Kudrolli, D. H. Rothman, Comptes Rendus Geoscience
**344**, 33 (2012). - "Building Designed Granular Towers One Drop at a Time," J. Chopin and A. Kudrolli, Phys. Rev. Lett.
**107**, 208304 (2011). Movies, Science Editor Choice, Nature highlight - "Geometry of valley growth," A. P. Petroff, O. Devauchelle, D. M. Abrams, A. E. Lobkovsky, A. Kudrolli and D. H. Rothman, J. Fluid Mech.
**673**, 245 (2011). - "Aggregation of frictional particles due to capillary attraction," Marie-Julie Dalbe, Darija Cosic, Michael Berhanu, and Arshad Kudrolli, Phys. Rev. E
**83**, 051403 (2011). - "Maximum and minimum stable random packings of Platonic solids," J. Baker and A. Kudrolli, Phys. Rev. E
**82**, 061304 (2010). - "Heterogeneous structure of granular aggregates with capillary interactions," M. Berhanu and A. Kudrolli, Phys. Rev. Lett.
**105**, 098002 (2010). - "Spatial distribution functions of random packed granular spheres obtained by direct particle imaging," A. Panaitescu and A. Kudrolli, Phys. Rev. E Rapid Communication,
**81**, 060301 (2010). - "Tumbling dynamics of flexible wings," D. Tam, J.W.M. Bush, M. Robitaille, and A. Kudrolli, Phys. Rev. Lett.
**104**, 184504 (2010). - "Concentration dependent diffusion of self-propelled rods," A. Kudrolli, Phys. Rev. Lett.
**104**, 088001 (2010). - "Experimental investigation of cyclically sheared granular particleswith direct particle tracking," A. Panaitescu and A. Kudrolli, Progress ofTheoretical Physics, Supplement No.
**184**, 100 (2010). - "Physical test of a particle simulation model in a sheared granular system," C. H. Rycroft, A. V. Orpe, and A. Kudrolli, Phys. Rev. E
**80**, 031305 (2009). - "Structure and dynamics of vibrated granular chains: Comparison to equilibrium polymers," K. Safford, Y. Kantor, M. Kardar, and A. Kudrolli, Phys. Rev. E
**79**, 061304 (2009). - "Growth laws for channel networks incised by groundwater flow," D. M. Abrams, A. E. Lobkovsky, A. P. Petroff, K. M. Straub, B. McElroy, D. C. Mohrig, A. Kudrolli, and D. H. Rothman, Nature Geoscience
**2**, 193 (2009). - "Fast decay of the velocity autocorrelation function in dense shear flow of inelastic hardspheres," A. V. Orpe, V. Kumaran, K. A. Reddy and A. Kudrolli, Europhys. Lett.
**84**, 64003 (2008). - "Gallery of Nonlinear Images: Channel erosion due to subsurface flow," B. Smith, A. Kudrolli, A. E. Lobkovsky, and D. H. Rothman," Chaos
**18**, 041105 (2008). - "News and Views: Granular Matter - Sticky Sand," A. Kudrolli, Nature Materials
**7**, 174 (2008). - "Swarming and swirling in self-propelled granular rods," A. Kudrolli, G. Lumay, D. Volfson, and L. Tsimring, Phys. Rev. Lett.
**100**, 058001 (2008). - "Erosion of a granular bed driven by laminar fluid flow," A. Lobkovsky, A. Orpe, R. Molloy, A. Kudrolli, and D. Rothman, J. Fluid Mech.
**605**47-58 (2008). - "Lubrication effects on the flow of wet granular materials," Q. Xu, A. V. Orpe, and A. Kudrolli, Phys. Rev. E
**76**, 031302 (2007). - "Velocity correlations in dense granular flows observed with internal imaging," A.V. Orpe and A. Kudrolli, Phys. Rev. Lett.
**98**, 238001 (2007). - "Dynamics of channel incision in a granular bed driven by subsurface water flow," A. E. Lobkovsky, B. Smith, A. Kudrolli, D. C. Mohrig, and D. H. Rothman, J. Geophys. Res.,
**112**, F03S12 (2007). - "Curvature condensation and bifurcation in an elastic shell," M. Das, A. Vaziri, A. Kudrolli, and L. Mahadevan, Phys. Rev. Lett.
**98**, 014301 (2007). - "Friction of a slider on a granular layer: Nonmonotonic thickness dependence and effect of boundary conditions," S. Siavoshi, A. V. Orpe, and A. Kudrolli, Phys. Rev. E
**73**, 010301 (2006). - "Maximum angle of stability of a wet granular pile," S. Nowak, A. Samadani, and A. Kudrolli, Nature Physics
**1**, 50 (2005). Reprint. See related News and Views, and Cover Story. Press Coverage in , CNN, among others. - "Dynamics of a bouncing dimer," S. Dorbolo, D. Volfson, L. Tsimring, and A. Kudrolli, Phys. Rev. Lett.
**95**, 044101 (2005). - "Velocity profile of granular flows inside silos and hoppers," J. Choi, A. Kudrolli, and M. Z. Bazant, J. Phys. Condensed Matter
**17**S2533-S2548 (2005). cond-mat/0501568. - "Failure of a granular step," S. Siavoshi and A. Kudrolli, Phys. Rev. E
**71**, 051302 (2005) (6 pages). - "Geometry of crumpled paper," D.L. Blair and A. Kudrolli, Phys. Rev. Lett.
**94**, 166107 (2005). - "Threshold phenomena in erosion driven by subsurface flow," A.E. Lobkovsky, B. Jensen, A. Kudrolli, and D.H. Rothman, Journal of Geophysical Research - Earth Surface
**109**, F04010 (2004). - "Anisotropy driven dynamics in vibrated granular rods," D. Volfson, A. Kudrolli, and L.S. Tsimring, Phys. Rev. E
**70**, 051312 (2004). cond-mat/0403489. - "Diffusion and mixing in gravity-driven dense granular flows," J. Choi, A. Kudrolli, R. R. Rosales, and M. Z. Bazant, Phys. Rev. Lett.
**92**, 174301 (2004). preprint - "Spontaneous channelization in permeable ground: Theory, experiment, and observation," N. Schorghofer, B. Jensen, A. Kudrolli, and D.H. Rothman, J. Fluid Mechanics
**503**, 357-374 (2004). nlin.PS/0311049 - "Size separation in vibrated granular materials," A. Kudrolli, Reports on Progress in Physics
**67**, 209 - 247 (2004). link - "Magnetized granular materials," D.L. Blair and A. Kudrolli, in
*The Physics of granular media*, H. Hinrichsen and D.E. Wolf (Editors), (Wiley-VCH publishers, 2004) 281-296. - "Collision statistics of driven granular materials," D.L. Blair and A. Kudrolli, Phys. Rev. E
**67**, 041301 (2003). cond-mat/0212336 - "Vortices in vibrated granular rods," D.L. Blair, T. Neicu, and A. Kudrolli, Phys. Rev. E
**67**, 031303 (2003). cond-mat/0203236 - ``Clustering transitions in vibro-fluidized magnetized granular materials," D.L. Blair and A. Kudrolli, Phys. Rev. E
**67**, 021302 (2003). cond-mat/0203488 - ``Shocks in sand flowing in a silo," A. Samadani, L. Mahadevan, and A. Kudrolli, J. Fluid Mech.
**452**, 293-301 (2002). cond-mat/0110427 - ``Periodic orbit analysis of an elastodynamic resonator using shape deformation," T. Neicu and A. Kudrolli, Europhys. Lett.,
**57**(3) , 341-347 (2002), cond-mat/0110543 - ``Angle of repose and segregation of cohesive granular matter," A. Samadani and A. Kudrolli, Phys. Rev. E,
**64**, 051301 (2001), cond-mat/0106572 - ``Velocity correlations in dense granular gases," D. L. Blair and A. Kudrolli, Phys. Rev. E
**64**, 050301(R) (2001). cond-mat/0101015 - ``Swarming ring patterns in bacterial colonies exposed to ultraviolet radiation," A. Delprato, A. Samadani, A. Kudrolli, and L. Tsimring, Phys. Rev. Lett.
**87**, 158102 (2001), cond-mat/0101018 See related story in and**, New Scientist** - ``Eigenvalues and Eigenfunctions of a Clover Plate," O. Brodier, T. Neicu, and A. Kudrolli, Eur. Phys. J. B
**23**, 365 (2001). - ``Segregation transitions in wet granular matter," A. Samadani and A. Kudrolli, Phys. Rev. Lett.
**85**, 5102 (2000) (preprint on cond-mat/0008293) - ``Spectral properties of a mixed system using an acoustical resonator," T. Neicu, K. Schaadt, and A. Kudrolli, Phys. Rev. E 63 026206 (2001).
- ``Scarred patterns in surface waves," A. Kudrolli, M. Abraham, and J.P. Gollub, Phys. Rev. E 63, 026208 (2001) (movies/preprint).
- ``Non-Gaussian velocity distributions in excited granular matter in the absence of clustering," A. Kudrolli and J. Henry, Phys. Rev. E
**62**, R1489 (2000) (preprint on cond-mat). - ``Extinction transition in bacterial colonies under forced convection," T. Neicu, A. Pradhan, D. A.Larochelle, and A. Kudrolli, Phys. Rev. E
**62**, 1059 (2000) (preprint on cond-mat). - ``Size Segregation of Granular Matter in Silo Discharges," A. Samadani, A. Pradhan, and A. Kudrolli, Phys. Rev. E
**60**, 7203 (1999). - Experimental investigation of universal parametric correlators using a vibrating plate, K. Schaadt, and A. Kudrolli, Phys. Rev. E.
**60**R3479 (1999) - "Velocity statistics in vibrated granular media," W. Losert, D.G.W. Cooper, J. Delour, A. Kudrolli, J.P. Gollub, Chaos 9, 682 (1999).
- "Superlattice patterns in surface waves," A. Kudrolli, B. Pier, and J. P. Gollub, Physica D
**22**, 99 (1998). - "Friction in Granular Layers: Hysteresis and Precursors," S. Nasuno, A. Kudrolli, and J. P. Gollub, Phys. Rev. Lett.
**79**, 949 (1997). - "Sensitive force measurements in sheared granular flow with simultaneous imaging'', S. Nasuno, A. Kudrolli, and J. P. Gollub, Powders and Grains (1997).
- "Studies of cluster formation due to collisions in granular material'', A. Kudrolli, and J. P. Gollub, Powders and Grains (1997).
- "Cluster formation due to Collisions in Granular Material'', A. Kudrolli, M. Wolpert and J. P. Gollub, Phys. Rev. Lett.
**78**, 1383 (1997). - "Patterns and Spatiotemporal Chaos in Parametrically Forced Surface Waves: Systematic Survey at Large Aspect Ratio'', A. Kudrolli and J. P. Gollub, Physica D
**97**, 133 (1996). - "Localized Spatiotemporal Chaos'', A. Kudrolli and J. P. Gollub, Phys. Rev. E
**54**, R1052 (1996). - "Experiments on Quantum Chaos using microwave cavities: Results for the pseudo-integrable L-billiard'', A. Kudrolli and S. Sridhar, Pramana J. of Phys. (to appear).
- "Microwave 2-disk scattering'', A. Kudrolli and S. Sridhar, in Proceedings of the 4th Drexel Conference on Nonintegrablity, (World Scientific, 1996).
- "Comment on Gaussian Orthogonal Ensemble Statistics ....'', A. Kudrolli and S. Sridhar, Phys. Rev. Lett.
**76**, 3036 (1996). - "Spatial Correlation in Quantum Chaotic Systems with Time-reversal Symmetry: Theory and Experiment," V. N. Prigodin, N. Taniguchi, A. Kudrolli, V. Kidambi and S. Sridhar, Phys. Rev. Lett.
**75**, 2392 (1995). - "Experiments on Chaos and Localization in Quantum Wavefunctions," A. Kudrolli, V. Kidambi and S. Sridhar, Phys. Rev. Lett.
**75**, 822 (1995). - "Experiments on Quantum Chaos using microwave cavities," A. Kudrolli and S. Sridhar, in Proceedings of the 2nd Conference on Experimental Chaos , editors W. Ditto, L. Pecora, S. Vohra, M. Shlesinger and M. Spano, (World Scientific, 1995), p184.
- "Experiments on Not Hearing the Shape of Drums," S. Sridhar and A. Kudrolli, Phys. Rev. Lett.
**72**, 2175 (1994). - "Signatures of Chaos in Quantum Billiards: Microwave Experiments," A. Kudrolli, S. Sridhar, A. Pandey and R. Ramaswamy, Phys. Rev. E
**49**, R11 (1994). - "Experimental Eigenvalue Spectra of Rough and Multiply-connected Billards," S. Sridhar, D. Hogenboom and A. Kudrolli, in Quantum Dynamics of Chaotic Systems , edited by J. M. Yuan, D. H. Feng and G. M. Zaslavsky, (Gordon and Breach, Amsterdam, 1993), p. 297.

Links to research conducted before comming to Clark:

- Granular Friction: Hystersis and Precursors (with S. Nasuno and J. P. Gollub).
- Cluster Formation in Granular Flow (with M. Wolpert and J. P. Gollub).
- Superlattices, Hexagons, Squares and Stripes in Surface Waves (with J. P. Gollub).
- Statistical properties eigenfunctions of Disordered and Quantum Chaotic Systems (with V. Kidambi and S. Sridhar).
- One cannot Hear the Shape of Drums (with S. Sridhar).
- Click here to see java applet that demonstrates inelastic collapse.

Link to father's web page on Urdu Poetry

*Please send comments to:*

Arshad Kudrolli

akudrolli@clarku.edu

Last modified January 12, 2015