General
Interests Current Research
Projects Selected Publications
Courses Turbulence and Sediment
Modeling Laboratory

General
Interests My
research interest is in landscape mechanics with a primary focus
on fluvial geomorphology, sediment transport, and surface water
processes.
Current
Research Projects
I am developing a set of LES and hybrid techniques for turbulence
in environmental flows. Sediment transport is then calculated
using the LES results either by bedload calculations from the
temporally and spatially varying bed stress, or by 3D
advectiondiffusion modeling of suspended sediment.
I am building a suite of environmental morphodynamic models
involving 3D steady RANS calculations for environmental flows. At
each time step sediment continuity is solved and the 3D
structured or unstructured grid is adjusted accordingly. This
modeling system is being developed for simulation of bar growth
in rivers and largescale erosion and deposition of eolian
landscapes.
I am conducting numerical simulations of turbulence and sediment
transport by combining turbulenceresolving LES simulations with
particleresolving distinct element method (DEM) modeling of each
sediment particle. Using this method I directly calculate the
motion of bedload and suspended load grains, thus relying on no
empirical parameterizations of sediment fluxes. I am testing the
model with previous experimental work. My colleagues and I have
designed a series of flume experiments to test the validity of
the spatial and temporal distribution of transport predicted by
the simulations.
Below are a few random clips of various simulations


DES of Grand Canyon Eddy




DES Meander , 3D RANS, 2D DepthAveraged Flow Models Click
Here for a high resolution version if this meandering
simulation

DES Flow Through Cylinders Click Here
for high resolution version



DES over ripples

Suspended Sediment over Ripples driven by DES



LES over a flat bed

Suspended Sediment driven by LES flow over flat bed

Publications
Schmeeckle,
M.W. (2014). The role of velocity, pressure, and bed stress
fluctuations in bed load transport over bed forms: numerical
simulation downstream of a backward facing step. Earth Surface
Dynamics Discussions. , 2, 715732,
doi:10.5194/esurfd27152014.
Figure
1 animation , Figure
5 animation
Schmeeckle,
M.W. (2014). Numerical simulation of turbulence and sediment
transport of medium sand. Journal of
Geophysical Research: Earth Surface. doi: 10.1002/2013JF002911
Larson,
P., R.I. Dorn, R.I., R.E. Palmer, Z. Bowles, E. Harrison, S.
Kelley, M.W.
Schmeeckle,
and J Douglass (2014) Basin and Range Hydrological Integration
and Pediment Evolution in the Southwestern USA, Physical
Geography. doi: 10.1080/02723646.2014.931089
Yager,
E. M., & Schmeeckle, M. W. (2013). The influence of
vegetation on turbulence and bedload transport and bedload
transport. Journal of Geophysical
Research: Earth Surface.
Furbish,
D. J., & Schmeeckle, M. W. (2013). A probabilistic derivation
of the exponentiallike distribution of bedload particle
velocities. Water Resources
Research,
Alvarez,
L., & Schmeeckle, M. (2013). Erosion of river sandbars by
diurnal stage fluctuations in the colorado river in the marble
and grand canyons: Fullscale laboratory experiments.
River Research and Applications,
Furbish,
D. J., Ball, A. E., & Schmeeckle, M. W. (2012). A
probabilistic description of the bed load sediment flux: 4.
fickian diffusion at low transport rates. Journal
of Geophysical Research, 117(F3),
F03034.
Furbish,
D. J., Haff, P. K., Roseberry, J. C., & Schmeeckle, M. W.
(2012). A probabilistic description of the bed load sediment
flux: 1. theory. Journal of
Geophysical Research, 117(F3),
F03031.
Furbish,
D. J., Roseberry, J. C., & Schmeeckle, M. W. (2012). A
probabilistic description of the bed load sediment flux: 3. the
particle velocity distribution and the diffusive flux.
Journal of Geophysical Research, 117(F3),
F03033.
Roseberry,
J. C., Schmeeckle, M. W., & Furbish, D. J. (2012). A
probabilistic description of the bed load sediment flux: 2.
particle activity and motions. Journal
of Geophysical Research, 117(F3),
F03032.
Travis,
Q. B., Schmeeckle, M. W., & Sebert, D. M. (2010).
Metaanalysis of 301 slope failure calculations. I: Database
description. Journal of Geotechnical
and Geoenvironmental Engineering, 137(5),
453470.
Travis,
Q. B., Schmeeckle, M. W., & Sebert, D. M. (2010).
Metaanalysis of 301 slope failure calculations. II: Database
analysis. Journal of Geotechnical
and Geoenvironmental Engineering, 137(5),
471482.
Douglass,
J., Meek, N., Dorn, R. I., & Schmeeckle, M. W. (2009). A
criteriabased methodology for determining the mechanism of
transverse drainage development, with application to the
southwestern united states. Geological
Society of America Bulletin, 121(34),
586598.
Furbish,
D. J., Childs, E. M., Haff, P. K., & Schmeeckle, M. W.
(2009). Rain splash of soil grains as a stochastic
advectiondispersion process, with implications for desert
plantsoil interactions and landsurface evolution.
Journal of Geophysical Research, 114,
F00A03.
Travis,
Q. B., Houston, S. L., Marinho, F. A. M., & Schmeeckle, M.
(2009). Unsaturated infinite slope stability considering surface
flux conditions. Journal of
Geotechnical and Geoenvironmental Engineering, 136(7),
963974.
Akahori,
R., Schmeeckle, M., & Ikeda, S. (2008). Numerical calculation
of suspended sediment transport by using a particlebased method.
Theoretical and Applied Mechanics Japan,
57, 449460.
Akahori,
R., Schmeeckle, M. W., Topping, D. J., & Melis, T. S. (2008).
Erosion properties of cohesive sediments in the colorado river in
grand canyon. River Research and
Applications, 24(8), 11601174.
Fernando,
H. J., Voropayev, S. I., & Schmeeckle, M. W. (2008). Ripple
dynamics and benthic transformations under variable wave forcing.
().DTIC Document.
Furbish,
D. J., Schmeeckle, M. W., & Roering, J. J. (2008). Thermal
and forcechain effects in an experimental, sloping granular
shear flow. Earth Surface Processes
and Landforms, 33(13), 21082117.
Douglass,
J., & Schmeeckle, M. (2007). Analogue modeling of transverse
drainage mechanisms. Geomorphology,
84(1), 2243.
Furbish,
D. J., Hamner, K. K., Schmeeckle, M., Borosund, M. N., &
Mudd, S. M. (2007). Rain splash of dry sand revealed by
highspeed imaging and sticky paper splash targets.
J.Geophys.Res, 112(F01001),
F01001.
Schmeeckle,
M. W., Nelson, J. M., & Shreve, R. L. (2007). Forces on
stationary particles in nearbed turbulent flows. Journal
of Geophysical Research, 112(F2),
F02003.
Nelson,
J., Burman, A., Shimizu, Y., McLean, S., Shreve, R., &
Schmeeckle, M. (2006). Computing flow and sediment transport over
bedforms. River, Coastal and
Estuarine Morphodynamics: London, Taylor \& Francis Group, ,
861872.
Akahori,
R., & Schmeeckle, M. (2005). Numerical analysis of
secondaryflow around a spur dike using a threedimensional free
water surface LES model. Proceedings
of the 4th IAHR Symposium on River, Coastal, and Estuarine
Morphodynamics, , 921930.
Mango,
A. J., Schmeeckle, M. W., & Furbish, D. J. (2004). Tidally
induced groundwater circulation in an unconfined coastal aquifer
modeled with a heleshaw cell. Geology,
32(3), 233236.
Schmeeckle,
M. W., & Nelson, J. M. (2003). Direct numerical simulation of
bedload transport using a local, dynamic boundary condition.
Sedimentology, 50(2),
279301.
Nelson,
J. M., Schmeeckle, M. W., Shreve, R. L., & McLean, S. R.
(2001). Sediment entrainment and transport in complex flows.
River, Coastal and Estuarine
Morphodynamics, , 1135.
Schmeeckle,
M. W., Nelson, J. M., Pitlick, J., & Bennett, J. P. (2001).
Interparticle collision of natural sediment grains in water.
Water Resources Research, 37(9),
23772391.
Shimizu,
Y., Schmeeckle, M., & Nelson, J. (2001). Direct numerical
simulation of turbulence over twodimensional dunes using CIP
method. Journal of Hydroscience and
Hydraulic Engineering, 19(2),
8592.
Nelson,
J. M., Schmeeckle, M. W., & Shreve, R. L. (2000). Turbulence
and particle entrainment. GravelBed
Rivers,
Schmeeckle,
M. W. (1999). A dynamic boundary condition for bedload sediment
transport in nonuniform, hydraulically rough turbulent boundary
layers. Annual Journal of Hydraulic
Engineering, Japan Society of Civil Engineers, 42,
653658.
Schmeeckle,
M. W., Shimizu, Y., Baba, H., & Ikezaki, S. (1999). Numerical
and experimental investigation of turbulence over dunes in
openchannel flow. Monthly Report of
the Civil Engineering Research Institute, 551,
215.
Schmeeckle,
M., Shimizu, Y., Hoshi, K., Baba, H., & Ikezaki, S. (1999).
Turbulent structures and suspended sediment over twodimensional
dunes. River, Coastal and Estuarine
Morphodynamics, Proceedings International Association for
Hydraulic Research Symposium, ,
261270.
Shimizu,
Y., Schmeeckle, M., Hoshi, K., & Tateya, K. (1999). Numerical
simulation of turbulence over twodimensional dunes.
River, Coastal and Estuarine
Morphodynamics, Proceedings International Association for
Hydraulic Research Symposium, ,
251260.
Schmeeckle, M. W.
(1998). The mechanics of bedload sediment transport.
Animations

