Geophysical Granular Flows and Sediment Transport: Bridging Grain-Scale Mechanics and Continuum Modeling
Geophysical Granular Flows and Sediment Transport: Bridging Grain-Scale Mechanics and Continuum Modeling
Session ID#: 280328
Session Description:
Earth and planetary surfaces are covered by granular material that may flow under the action of gravity, interaction with fluids such as air or water, or other geophysical processes. These geophysical granular flows and sediment transport phenomena are at the heart of landscape dynamics (hillslope creep, riverbed evolution, coastal erosion), pattern formation (grain sorting and segregation, dunes, ripples), and geohazards (landslide, debris flow, snow avalanche). A fundamental challenge lies in the multiscale nature of granular materials rendering a continuum description difficult to achieve. Recent advances in high-resolution imaging and particle-resolved numerical simulations allowed for insights into particle-scale mechanisms. However, research carried out at the particle-scale has yet to be harmonized into a consistent theoretical body able to match field and laboratory observations. We invite field, experimental and numerical research from particle to macroscopic scales to address this theme's open questions.
Co-Sponsor(s):
- H - Hydrology
- NH - Natural Hazards
- P - Planetary Sciences
- S - Seismology
Index Terms:
1810 Debris flow and landslides [HYDROLOGY]
1822 Geomechanics [HYDROLOGY]
1824 Geomorphology: general [HYDROLOGY]
1862 Sediment transport [HYDROLOGY]
Primary Convener: Dr. Lu Jing, Tsinghua University, Tsinghua Shenzhen International Graduate School, Beijing, China
Conveners: Kimberly M Hill, University of Minnesota, Minneapolis, MN, United States, Yue Meng, Purdue University, West Lafayette, IN, United States and Qiong Zhang, Northwestern University, Evanston, IL, United States
Student/Early Career Convener: PJ Zrelak, The University of Edinburgh, Edinburgh, United Kingdom
See more of: Earth and Planetary Surface Processes