Numerical simulation of downstream fining by selective transport in gravel bed rivers: Model development and illustration

1994 ◽  
Vol 30 (7) ◽  
pp. 2251-2260 ◽  
Author(s):  
Trevor B. Hoey ◽  
Rob Ferguson
Keyword(s):  
Numerical Simulation ◽  
Model Development ◽  
Selective Transport ◽  
Gravel Bed ◽  
Downstream Fining ◽  
Gravel Bed Rivers

Downstream fining in gravel bed rivers

Eos ◽  
1989 ◽  
Vol 70 (38) ◽  
pp. 852 ◽  
Author(s):  
Chris Paola ◽  
Peter Wilcock
Keyword(s):  
Gravel Bed ◽  
Downstream Fining ◽  
Gravel Bed Rivers

Comparing gravel-bed rivers in paired urban and rural catchments of southeastern Pennsylvania

Geology ◽  
2000 ◽  
Vol 28 (1) ◽  
pp. 79-82 ◽  
Author(s):  
J. E. Pizzuto ◽  
W. C. Hession ◽  
M. McBride
Keyword(s):  
Gravel Bed ◽  
Gravel Bed Rivers

UNRAVELLING THE ROLE OF VEGETATION IN THE AVULSION HISTORY OF GRAVEL-BED RIVERS

2018 ◽  
Author(s):  
Daniel Donahue ◽  
◽  
José Antonio Constantine ◽  
Gregory B. Pasternack
Keyword(s):  
Gravel Bed ◽  
History Of ◽  
Gravel Bed Rivers

scholarly journals Selective Transport of Airborne Microparticles Through Micro-channels Under Microgravity

2021 ◽  
Vol 33 (1) ◽  
Author(s):  
Monia Makhoul ◽  
Philippe Beltrame
Keyword(s):  
Numerical Simulation ◽  
Fluid Flow ◽  
Bifurcation Analysis ◽  
Metal Particles ◽  
Microgravity Environment ◽  
Ratchet Effect ◽  
Selective Transport ◽  
Microgravity Experiments ◽  
Particle Drift ◽  
Micro Channels

AbstractThis paper analyzes the possibility of obtaining the selective transport of microparticles suspended in air in a microgravity environment through modulated channels without net displacement of air. Using numerical simulation and bifurcation analysis tools, we show the existence of intermittent particle drift under the Stokes assumption of the fluid flow. The particle transport can be selective and the direction of transport is controlled only by the kind of pumping used. The selective transport is interpreted as a deterministic ratchet effect due to spatial variations in the flow and the particle drag. This ratchet phenomenon could be applied to the selective transport of metal particles during the short duration of microgravity experiments.

Unobstructed and Obstructed Turbulent Flow in Gravel Bed Rivers

2005 ◽  
Vol 131 (8) ◽  
pp. 635-645 ◽  
Author(s):  
Hans M. Tritico ◽  
Rollin H. Hotchkiss
Keyword(s):  
Turbulent Flow ◽  
Gravel Bed ◽  
Gravel Bed Rivers
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