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Research Output

2019

Erosion by experimental debris flows: Particle size effects

Ghasemi, A., Kaitna, R., Fritton, P., Blankenship, B. T., Feng, Q., Densmore, A., de Haas, T. & Hill, K. M., Jan 1 2019, Debris-Flow Hazards Mitigation: Mechanics, Monitoring, Modeling, and Assessment - Proceedings of the 7th International Conference on Debris-Flow Hazards Mitigation. Kean, J. W., Coe, J. A., Santi, P. M. & Guillen, B. K. (eds.). Association of Environmental and Engineering Geologists, p. 10-17 8 p. (Debris-Flow Hazards Mitigation: Mechanics, Monitoring, Modeling, and Assessment - Proceedings of the 7th International Conference on Debris-Flow Hazards Mitigation).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2018

Effect of Flood Hydrograph Duration, Magnitude, and Shape on Bed Load Transport Dynamics

Phillips, C. B., Hill, K. M., Paola, C., Singer, M. B. & Jerolmack, D. J., Aug 28 2018, In : Geophysical Research Letters. 45, 16, p. 8264-8271 8 p.

Research output: Contribution to journalArticle

Open Access
7 Scopus citations

The St. Anthony Falls Laboratory: 80 Years of Progress Part 2A Transition to Environmental Research

Stefan, H., Ellis, C., Gulliver, J., Hondzo, M., Paola, C., Marr, J., Hill, K., Guala, M., Ebtehaj, A., Voller, V., Erickson, A., Kozarek, J. & Hansen, A., Jan 1 2018, World Environmental and Water Resources Congress 2018: International Perspectives, History and Heritage, Emerging Technologies, and Student Papers - Selected Papers from the World Environmental and Water Resources Congress 2018. Kamojjala, S. (ed.). American Society of Civil Engineers (ASCE), p. 151-184 34 p. (World Environmental and Water Resources Congress 2018: International Perspectives, History and Heritage, Emerging Technologies, and Student Papers - Selected Papers from the World Environmental and Water Resources Congress 2018).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2017

Experimental study of the effect of grain sizes in a bimodal mixture on bed slope, bed texture, and the transition to washload

Hill, K. M., Gaffney, J., Baumgardner, S., Wilcock, P. & Paola, C., Jan 1 2017, In : Water Resources Research. 53, 1, p. 923-941 19 p.

Research output: Contribution to journalArticle

Open Access
9 Scopus citations

Granular flows applied to gravel-bed rivers: Particle-scale studies of the mobilization of a gravel bed by the addition of fines

Hill, K. M. & Tan, D., Mar 15 2017, Gravel-Bed Rivers: Process and Disasters. Wiley-Blackwell, p. 73-95 23 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

2 Scopus citations

Simulation of size segregation in granular flow with material point method

Fei, M., Sun, Q., Hill, K. & Zhou, G. G. D., Jun 30 2017, In : EPJ Web of Conferences. 140, 11010.

Research output: Contribution to journalConference article

2016

Effects of coarse grain size distribution and fine particle content on pore fluid pressure and shear behavior in experimental debris flows

Kaitna, R., Palucis, M. C., Yohannes, B., Hill, K. M. & Dietrich, W. E., Feb 2016, In : Journal of Geophysical Research: Earth Surface. 121, 2, p. 415-441 27 p.

Research output: Contribution to journalArticle

Open Access
26 Scopus citations

Granular temperature and segregation in dense sheared particulate mixtures

Hill, K. M. & Fan, Y., Jan 1 2016, In : KONA Powder and Particle Journal. 2016, 33, p. 150-168 19 p.

Research output: Contribution to journalReview article

8 Scopus citations

Infiltration experiments demonstrate an explicit connection between heterogeneity and anomalous diffusion behavior

Filipovitch, N., Hill, K. M., Longjas, A. & Voller, V. R., Jul 1 2016, In : Water Resources Research. 52, 7, p. 5167-5178 12 p.

Research output: Contribution to journalArticle

Open Access
16 Scopus citations
2015

Shear-induced segregation of particles by material density

Fan, Y. & Hill, K. M., Aug 25 2015, In : Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. 92, 2, 022211.

Research output: Contribution to journalArticle

17 Scopus citations
2014

Discrete element modeling of effect of moisture and fine particles in lightweight deflectometer test

Tan, D. S., Khazanovich, L., Siekmeier, J. & Hill, K. M., Jan 1 2014, In : Transportation Research Record. 2433, p. 58-67 10 p.

Research output: Contribution to journalArticle

3 Scopus citations

Mechanistic modelling of tests of unbound granular materials

Yohannes, B., Tan, D., Khazanovich, L. & Hill, K. M., Aug 9 2014, In : International Journal of Pavement Engineering. 15, 7, p. 584-598 15 p.

Research output: Contribution to journalArticle

10 Scopus citations

Segregation in dense sheared flows: Gravity, temperature gradients, and stress partitioning

Hill, K. M. & Tan, D. S., Oct 2014, In : Journal of Fluid Mechanics. 756, p. 54-88 35 p.

Research output: Contribution to journalArticle

44 Scopus citations
2012

Boundary stresses due to impacts from dry granular flows

Yohannes, B., Hsu, L., Dietrich, W. E. & Hill, K. M., Jun 1 2012, In : Journal of Geophysical Research: Earth Surface. 117, 2, F02027.

Research output: Contribution to journalArticle

18 Scopus citations

Unified mechanistic approach for modeling tests of unbound pavement materials

Hill, K. M., Yohannes, B. & Khazanovich, L., Sep 1 2012, In : Journal of Transportation Engineering. 138, 9, p. 1091-1098 8 p.

Research output: Contribution to journalArticle

3 Scopus citations
2011

Discrete element modeling and large scale experimental studies of bouldery debris flows

Hill, K. M., Bereket, Y., Dietrich, W. E. & Hsu, L., Dec 1 2011, 5th International Conference on Debris-Flow Hazard Mitigation: Mechanics, Prediction, and Assessment. p. 435-447 13 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Phase transitions in shear-induced segregation of granular materials

Fan, Y. & Hill, K. M., May 27 2011, In : Physical Review Letters. 106, 21, 218301.

Research output: Contribution to journalArticle

39 Scopus citations

Rheology of dense granular mixtures: Boundary pressures

Hill, K. M. & Yohannes, B., Feb 4 2011, In : Physical Review Letters. 106, 5, 058302.

Research output: Contribution to journalArticle

7 Scopus citations

Theory for shear-induced segregation of dense granular mixtures

Fan, Y. & Hill, K. M., Sep 1 2011, In : New Journal of Physics. 13, 095009.

Research output: Contribution to journalArticle

61 Scopus citations
2010

Collapse of a rectangular well in a quasi-two-dimensional granular bed

De Vet, S. J., Yohannes, B., Hill, K. M. & De Bruyn, J. R., Oct 21 2010, In : Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. 82, 4, 041304.

Research output: Contribution to journalArticle

8 Scopus citations

EM08 mini-symposium on granular materials-editorial: Interconnecting engineering and physics perspectives

Hill, K. M. & Shen, H., Apr 1 2010, In : Granular Matter. 12, 2, p. 143-144 2 p.

Research output: Contribution to journalEditorial

Granular segregation studies for the development of a radar-based three-dimensional sensing system

Hill, K. M., Fan, Y., Zhang, J., Van Niekerk, C., Zastrow, E., Hagness, S. C. & Bernhard, J. T., Apr 1 2010, In : Granular Matter. 12, 2, p. 201-207 7 p.

Research output: Contribution to journalArticle

14 Scopus citations

Preliminary investigations on the rheology and boundary stresses associated with granular mixtures

Yohannes, B. & Hill, K. M., Jul 20 2010, IUTAM-ISIMM Symposium on Mathematical Modeling and Physical Instances of Granular Flows. p. 379-387 9 p. (AIP Conference Proceedings; vol. 1227).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations
26 Scopus citations
22 Scopus citations
2008

Granular segregation studies for retroreflector sensor development

Hill, K. M., Fan, Y., Zhang, J., Bernhard, J. T. & Hagness, S. C., Jun 2 2008, In : Proceedings of SPIE - The International Society for Optical Engineering. 6932, 693245.

Research output: Contribution to journalConference article

Isolating segregation mechanisms in a split-bottom cell

Hill, K. M. & Fan, Y., Aug 21 2008, In : Physical Review Letters. 101, 8, 088001.

Research output: Contribution to journalArticle

29 Scopus citations

Kinematics of densely flowing granular mixtures

Hill, K. M. & Zhang, J., Jun 12 2008, In : Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. 77, 6, 061303.

Research output: Contribution to journalArticle

21 Scopus citations
2006

Fluctuating velocity and momentum transfer in dense granular flows

Gioia, G., Ott-Monsivais, S. E. & Hill, K. M., Apr 14 2006, In : Physical Review Letters. 96, 13, 138001.

Research output: Contribution to journalArticle

14 Scopus citations
2005

Effects of end wall friction in rotating cylinder granular flow experiments

Maneval, J. E., Hill, K. M., Smith, B. E., Caprihan, A. & Fukushima, E., Nov 1 2005, In : Granular Matter. 7, 4, p. 199-202 4 p.

Research output: Contribution to journalArticle

43 Scopus citations

Effects of end-wall friction on granular flow in rotating 2D and 3D cylinders

Caprihan, A., Smith, B. E., Maneval, J. E., Hill, K. M. & Fukushima, E., Dec 1 2005, Powders Grains - Proc. Int. Conf. Micromechanics Granular Media. p. 877-880 4 p. (Powders and Grains 2005 - Proceedings of the 5th International Conference on Micromechanics of Granular Media; vol. 2).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Moon patterns, sun patterns, and wave breaking in rotating granular mixtures

Hill, K. M., Gioia, G., Amaravadi, D. & Winter, C., Jan 1 2005, In : Complexity. 10, 4, p. 79-86 8 p.

Research output: Contribution to journalArticle

30 Scopus citations
2004

Radial segregation patterns in rotating granular mixtures: Waviness selection

Hill, K. M., Gioia, G. & Amaravadi, D., Nov 29 2004, In : Physical Review Letters. 93, 22, 22430l.

Research output: Contribution to journalArticle

44 Scopus citations
2003

Structure and Kinematics in Dense Free-Surface Granular Flow

Hill, K. M., Gioia, G. & Tota, V. V., Aug 8 2003, In : Physical Review Letters. 91, 6

Research output: Contribution to journalArticle

49 Scopus citations
2001

Modes of granular segregation in a noncircular rotating cylinder

Hill, K. M., Jain, N. & Ottino, J. M., Jul 2001, In : Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. 64, 1 Part 1, p. 1-4 4 p., 011302.

Research output: Contribution to journalArticle

34 Scopus citations
1999

Magnetic-field-induced optical transmittance in colloidal suspensions

Martin, J. E., Hill, K. M. & Tigges, C. P., Jan 1 1999, In : Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics. 59, 5, p. 5676-5692 17 p.

Research output: Contribution to journalArticle

94 Scopus citations

Mixing of granular materials: A test-bed dynamical system for pattern formation

Hill, K. M., Gilchrist, J. F., Ottino, J. M., Khakhar, D. V. & McCarthy, J. J., Aug 1999, In : International Journal of Bifurcation and Chaos in Applied Sciences and Engineering. 9, 8, p. 1467-1484 18 p.

Research output: Contribution to journalArticle

31 Scopus citations

Segregation-driven organization in chaotic granular flows

Hill, K. M., Khakhar, D. V., Gilchrist, J. F., McCarthy, J. J. & Ottino, J. M., Oct 12 1999, In : Proceedings of the National Academy of Sciences of the United States of America. 96, 21, p. 11701-11706 6 p.

Research output: Contribution to journalArticle

124 Scopus citations
1997
71 Scopus citations

Bulk segregation in rotated granular material measured by magnetic resonance imaging

Hill, K. M., Caprihan, A. & Kakalios, J., Jan 1 1997, In : Physical Review Letters. 78, 1, p. 50-53 4 p.

Research output: Contribution to journalArticle

174 Scopus citations

Pattern evolution of granular media rotated in a drum mixer

Hill, K. M., Kakalios, J. & Caprihan, A., Jan 1 1997, In : Materials Research Society Symposium - Proceedings. 463, p. 227-232 6 p.

Research output: Contribution to journalConference article

1995

Reversible axial segregation in rotating granular media

Hill, K. M., Yarusso, L. & Kakalios, J., Jan 1 1995, In : Materials Research Society Symposium - Proceedings. 367, p. 507-512 6 p.

Research output: Contribution to journalArticle

Reversible axial segregation of rotating granular media

Hill, K. M. & Kakalios, J., Jan 1 1995, In : Physical Review E. 52, 4, p. 4393-4400 8 p.

Research output: Contribution to journalArticle

136 Scopus citations
1994

Reversible axial segregation of binary mixtures of granular materials

Hill, K. M. & Kakalios, J., Jan 1 1994, In : Physical Review E. 49, 5

Research output: Contribution to journalArticle

132 Scopus citations
1993

Focusing a beam of ultracold spin-polarized hydrogen atoms with a helium-film-coated quasiparabolic mirror

Luppov, V. G., Kaufman, W. A., Hill, K. M., Raymond, R. S. & Krisch, A. D., Jan 1 1993, In : Physical Review Letters. 71, 15, p. 2405-2408 4 p.

Research output: Contribution to journalArticle

5 Scopus citations