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Items: 1 to 50 of 58

1.

Pattern formation in a fully three-dimensional segregating granular flow.

Yu M, Umbanhowar PB, Ottino JM, Lueptow RM.

Phys Rev E. 2019 Jun;99(6-1):062905. doi: 10.1103/PhysRevE.99.062905.

PMID:
31330669
2.

Cutting and shuffling a hemisphere: Nonorthogonal axes.

Lynn TF, Smith LD, Ottino JM, Umbanhowar PB, Lueptow RM.

Phys Rev E. 2019 Mar;99(3-1):032204. doi: 10.1103/PhysRevE.99.032204.

PMID:
30999529
3.

Modeling Segregation in Granular Flows.

Umbanhowar PB, Lueptow RM, Ottino JM.

Annu Rev Chem Biomol Eng. 2019 Jun 7;10:129-153. doi: 10.1146/annurev-chembioeng-060718-030122. Epub 2019 Mar 18.

PMID:
30883215
4.

Persistent structures in a three-dimensional dynamical system with flowing and non-flowing regions.

Zaman Z, Yu M, Park PP, Ottino JM, Lueptow RM, Umbanhowar PB.

Nat Commun. 2018 Aug 7;9(1):3122. doi: 10.1038/s41467-018-05508-7.

5.

Effect of pressure on segregation in granular shear flows.

Fry AM, Umbanhowar PB, Ottino JM, Lueptow RM.

Phys Rev E. 2018 Jun;97(6-1):062906. doi: 10.1103/PhysRevE.97.062906.

PMID:
30011460
6.

Recirculation cells for granular flow in cylindrical rotating tumblers.

D'Ortona U, Thomas N, Lueptow RM.

Phys Rev E. 2018 May;97(5-1):052904. doi: 10.1103/PhysRevE.97.052904.

PMID:
29906822
7.

Continuum modelling of segregating tridisperse granular chute flow.

Deng Z, Umbanhowar PB, Ottino JM, Lueptow RM.

Proc Math Phys Eng Sci. 2018 Mar;474(2211):20170384. doi: 10.1098/rspa.2017.0384. Epub 2018 Mar 14.

8.

Transient response in granular quasi-two-dimensional bounded heap flow.

Xiao H, Ottino JM, Lueptow RM, Umbanhowar PB.

Phys Rev E. 2017 Oct;96(4-1):040902. doi: 10.1103/PhysRevE.96.040902. Epub 2017 Oct 30.

PMID:
29347515
9.

Mixing and transport from combined stretching-and-folding and cutting-and-shuffling.

Smith LD, Umbanhowar PB, Ottino JM, Lueptow RM.

Phys Rev E. 2017 Oct;96(4-1):042213. doi: 10.1103/PhysRevE.96.042213. Epub 2017 Oct 19.

PMID:
29347485
10.

Predicting mixing via resonances: Application to spherical piecewise isometries.

Smith LD, Park PP, Umbanhowar PB, Ottino JM, Lueptow RM.

Phys Rev E. 2017 Jun;95(6-1):062210. doi: 10.1103/PhysRevE.95.062210. Epub 2017 Jun 13.

PMID:
28709217
11.

Wave propagation reversal for wavy vortices in wide-gap counter-rotating cylindrical Couette flow.

Altmeyer S, Lueptow RM.

Phys Rev E. 2017 May;95(5-1):053103. doi: 10.1103/PhysRevE.95.053103. Epub 2017 May 10.

PMID:
28618504
12.

Mixing and the fractal geometry of piecewise isometries.

Park PP, Lynn TF, Umbanhowar PB, Ottino JM, Lueptow RM.

Phys Rev E. 2017 Apr;95(4-1):042208. doi: 10.1103/PhysRevE.95.042208. Epub 2017 Apr 14.

PMID:
28505863
13.

Mixing with piecewise isometries on a hemispherical shell.

Park PP, Umbanhowar PB, Ottino JM, Lueptow RM.

Chaos. 2016 Jul;26(7):073115. doi: 10.1063/1.4955082.

PMID:
27475075
14.

Influence of rough and smooth walls on macroscale granular segregation patterns.

D'Ortona U, Thomas N, Lueptow RM.

Phys Rev E. 2016 Feb;93(2):022906. doi: 10.1103/PhysRevE.93.022906. Epub 2016 Feb 26.

PMID:
26986398
15.

Influence of rough and smooth walls on macroscale flows in tumblers.

D'Ortona U, Thomas N, Zaman Z, Lueptow RM.

Phys Rev E Stat Nonlin Soft Matter Phys. 2015 Dec;92(6):062202. doi: 10.1103/PhysRevE.92.062202. Epub 2015 Dec 4.

PMID:
26764677
16.

Shear-Rate-Independent Diffusion in Granular Flows.

Fan Y, Umbanhowar PB, Ottino JM, Lueptow RM.

Phys Rev Lett. 2015 Aug 21;115(8):088001. Epub 2015 Aug 18.

PMID:
26340210
17.

Competitive autocatalytic reactions in chaotic flows with diffusion: prediction using finite-time Lyapunov exponents.

Schlick CP, Umbanhowar PB, Ottino JM, Lueptow RM.

Chaos. 2014 Mar;24(1):013109. doi: 10.1063/1.4862153.

PMID:
24697371
18.

Slow axial drift in three-dimensional granular tumbler flow.

Zaman Z, D'Ortona U, Umbanhowar PB, Ottino JM, Lueptow RM.

Phys Rev E Stat Nonlin Soft Matter Phys. 2013 Jul;88(1):012208. Epub 2013 Jul 29.

PMID:
23944455
19.

Stratification, segregation, and mixing of granular materials in quasi-two-dimensional bounded heaps.

Fan Y, Boukerkour Y, Blanc T, Umbanhowar PB, Ottino JM, Lueptow RM.

Phys Rev E Stat Nonlin Soft Matter Phys. 2012 Nov;86(5 Pt 1):051305. Epub 2012 Nov 29.

PMID:
23214777
20.

Parameters and scalings for dry and immersed granular flowing layers in rotating tumblers.

Pignatel F, Asselin C, Krieger L, Christov IC, Ottino JM, Lueptow RM.

Phys Rev E Stat Nonlin Soft Matter Phys. 2012 Jul;86(1 Pt 1):011304. Epub 2012 Jul 18.

PMID:
23005408
21.

Chaotic mixing via streamline jumping in quasi-two-dimensional tumbled granular flows.

Christov IC, Ottino JM, Lueptow RM.

Chaos. 2010 Jun;20(2):023102. doi: 10.1063/1.3368695.

PMID:
20590298
22.

Onset mechanism for granular axial band formation in rotating tumblers.

Chen P, Ottino JM, Lueptow RM.

Phys Rev Lett. 2010 May 7;104(18):188002. Epub 2010 May 3.

PMID:
20482212
23.

Streamline jumping: a mixing mechanism.

Christov IC, Ottino JM, Lueptow RM.

Phys Rev E Stat Nonlin Soft Matter Phys. 2010 Apr;81(4 Pt 2):046307. Epub 2010 Apr 12.

PMID:
20481827
24.

Granular coarsening: phase space and evolution analogies.

Juarez G, Lueptow RM, Ottino JM.

Phys Rev E Stat Nonlin Soft Matter Phys. 2010 Jan;81(1 Pt 1):012301. Epub 2010 Jan 8.

PMID:
20365416
25.

Unsteady granular flows in a rotating tumbler.

Pohlman NA, Ottino JM, Lueptow RM.

Phys Rev E Stat Nonlin Soft Matter Phys. 2009 Sep;80(3 Pt 1):031302. Epub 2009 Sep 10.

PMID:
19905105
26.

Inversion of band patterns in spherical tumblers.

Chen P, Lochman BJ, Ottino JM, Lueptow RM.

Phys Rev Lett. 2009 Apr 10;102(14):148001. Epub 2009 Apr 6.

PMID:
19392485
27.

Axial band scaling for bidisperse mixtures in granular tumblers.

Juarez G, Ottino JM, Lueptow RM.

Phys Rev E Stat Nonlin Soft Matter Phys. 2008 Sep;78(3 Pt 1):031306. Epub 2008 Sep 17.

PMID:
18851030
28.

Subsurface granular flow in rotating tumblers: a detailed computational study.

Chen P, Ottino JM, Lueptow RM.

Phys Rev E Stat Nonlin Soft Matter Phys. 2008 Aug;78(2 Pt 1):021303. Epub 2008 Aug 14.

PMID:
18850827
29.

Photoreactive TiO2/carbon nanotube composites: synthesis and reactivity.

Yao Y, Li G, Ciston S, Lueptow RM, Gray KA.

Environ Sci Technol. 2008 Jul 1;42(13):4952-7.

PMID:
18678032
30.

Single-walled carbon nanotube-facilitated dispersion of particulate TiO2 on ZrO2 ceramic membrane filters.

Yao Y, Li G, Gray KA, Lueptow RM.

Langmuir. 2008 Jul 15;24(14):7072-5. doi: 10.1021/la801202d. Epub 2008 Jun 13.

PMID:
18549253
31.

Materials science. On mixing and demixing.

Ottino JM, Lueptow RM.

Science. 2008 Feb 15;319(5865):912-3. doi: 10.1126/science.1152849. No abstract available.

PMID:
18276878
32.

Behavior of flowing granular materials under variable g.

Brucks A, Arndt T, Ottino JM, Lueptow RM.

Phys Rev E Stat Nonlin Soft Matter Phys. 2007 Mar;75(3 Pt 1):032301. Epub 2007 Mar 28.

PMID:
17500741
33.

Capturing patterns and symmetries in chaotic granular flow.

Meier SW, Cisar SE, Lueptow RM, Ottino JM.

Phys Rev E Stat Nonlin Soft Matter Phys. 2006 Sep;74(3 Pt 1):031310. Epub 2006 Sep 27.

PMID:
17025626
34.

Creeping granular motion under variable gravity levels.

Arndt T, Brucks A, Ottino JM, Lueptow RM.

Phys Rev E Stat Nonlin Soft Matter Phys. 2006 Sep;74(3 Pt 1):031307. Epub 2006 Sep 20.

PMID:
17025623
35.

End-wall effects in granular tumblers: From quasi-two-dimensional flow to three-dimensional flow.

Pohlman NA, Ottino JM, Lueptow RM.

Phys Rev E Stat Nonlin Soft Matter Phys. 2006 Sep;74(3 Pt 1):031305. Epub 2006 Sep 19.

PMID:
17025621
36.

Surface roughness effects in granular matter: influence on angle of repose and the absence of segregation.

Pohlman NA, Severson BL, Ottino JM, Lueptow RM.

Phys Rev E Stat Nonlin Soft Matter Phys. 2006 Mar;73(3 Pt 1):031304. Epub 2006 Mar 16.

PMID:
16605514
37.

Removal of organic contaminants by RO and NF membranes.

Yoon Y, Lueptow RM.

J Memb Sci. 2005 Sep 15;261(1-2):76-86.

PMID:
16134262
38.

Synthesizing primary molecular relaxation processes in excitable gases using a two-frequency reconstructive algorithm.

Petculescu AG, Lueptow RM.

Phys Rev Lett. 2005 Jun 17;94(23):238301. Epub 2005 Jun 14.

PMID:
16090508
39.

Combined size and density segregation and mixing in noncircular tumblers.

Jain N, Ottino JM, Lueptow RM.

Phys Rev E Stat Nonlin Soft Matter Phys. 2005 May;71(5 Pt 1):051301. Epub 2005 May 6.

PMID:
16089522
40.

Reverse osmosis membrane rejection for ersatz space mission wastewaters.

Yoon Y, Lueptow RM.

Water Res. 2005 Sep;39(14):3298-308.

PMID:
16005043
41.

Creeping motion in granular flow.

Socie BA, Umbanhowar P, Lueptow RM, Jain N, Ottino JM.

Phys Rev E Stat Nonlin Soft Matter Phys. 2005 Mar;71(3 Pt 1):031304. Epub 2005 Mar 24.

PMID:
15903423
42.
43.

Dynamics of granular band formation: Long-term behavior in slurries, parameter space, and tilted cylinders.

Arndt T, Siegmann-Hegerfeld T, Fiedor SJ, Ottino JM, Lueptow RM.

Phys Rev E Stat Nonlin Soft Matter Phys. 2005 Jan;71(1 Pt 1):011306. Epub 2005 Jan 25.

PMID:
15697594
44.

Theory for a gas composition sensor based on acoustic properties.

Phillips S, Dain Y, Lueptow RM.

Meas Sci Technol. 2003 Jan;14(1):70-5.

PMID:
14552356
45.

Diffraction and attenuation of a tone burst in mono-relaxing media.

Dain Y, Lueptow RM.

J Acoust Soc Am. 2003 Sep;114(3):1416-23.

PMID:
14514194
46.

Acoustic attenuation in gas mixtures with nitrogen: experimental data and calculations.

Ejakov SG, Phillips S, Dain Y, Lueptow RM, Visser JH.

J Acoust Soc Am. 2003 Apr;113(4 Pt 1):1871-9.

PMID:
12703699
47.

Design parameters for rotating cylindrical filtration.

Schwille JA, Mitra D, Lueptow RM.

J Memb Sci. 2002 Jul 15;204(1-2):53-65.

PMID:
12238523
48.

Identification of complex flows in Taylor-Couette counter-rotating cavities.

Czarny O, Serre E, Bontoux P, Lueptow RM.

C R Acad Sci II. 2001 Oct;329(10):727-33.

PMID:
12238517
49.

Rotating reverse osmosis: a dynamic model for flux and rejection.

Lee S, Lueptow RM.

J Memb Sci. 2001 Oct 15;192(2):129-43.

PMID:
11757575
50.

Toward a reverse osmosis membrane system for recycling space mission wastewater.

Lee S, Lueptow RM.

Life Support Biosph Sci. 2000;7(3):251-61.

PMID:
11676440

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