EP41E:
Modeling Earth Surface Processes Using Computational Fluid Dynamics Across Scales I

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Session ID#: 35391

Session Description:
A wide spectrum of temporospatial scales is embedded in the dynamics of earth surface processes, e.g., the movement of fluids, the flux of sediment and solutes, and the resulted landscape evolution. Thus, the modeling of these processes requires a multi-scale approach. From a sand grain to regional scales, computational fluid dynamics (CFD) is a vital tool for our understanding of the underpinning mechanisms and their interactions. CFD has been applied to understand processes relevant to geomorphology and sediment source to sink, such as sedimentation, resuspension and turbidity currents. One of the grand challenges is to effectively integrate key processes of different scales through parameterizations, model coupling, adaptive mesh refinement, and assimilative methodology. This session welcomes contributions from researchers who use CFD to tackle earth surface process problems. Particularly, we welcome abstracts addressing how modeling at different scales can collectively improve our understanding and prediction of earth surface processes.
Primary Convener:  Xiaofeng Liu, Pennsylvania State University Main Campus, Department of Civil and Environmental Engineering, University Park, PA, United States
Conveners:  Tian-Jian Hsu, University of Delaware, Civil, Construction, and Environmental Engineering, Newark, United States and Joe Calantoni, US Naval Research Laboratory, Washington, DC, United States
Chairs:  Joe Calantoni, US Naval Research Laboratory, Washington, DC, United States, Tian-Jian Hsu, University of Delaware, Civil and Environmental Engineering, Newark, DE, United States and Xiaofeng Liu, Pennsylvania State University Main Campus, Department of Civil and Environmental Engineering, University Park, PA, United States
OSPA Liaison:  Xiaofeng Liu, Pennsylvania State University Main Campus, Department of Civil and Environmental Engineering, University Park, PA, United States

Cross-Listed:
  • H - Hydrology
Index Terms:

0545 Modeling [COMPUTATIONAL GEOPHYSICS]
0560 Numerical solutions [COMPUTATIONAL GEOPHYSICS]
1815 Erosion [HYDROLOGY]
1824 Geomorphology: general [HYDROLOGY]

Abstracts Submitted to this Session:

Self-similarity, entrainment, drag in turbidity currents using direct numerical simulations (Invited) (209143)
S Balachandar, University of Florida, Department of Mechanical & Aerospace Engineering, Gainesville, United States, Jorge Salinas, University of Florida, Gainesville, FL, United States and Mariano I Cantero, Consejo Nacional de Investigaciones Científicas y Técnicas, Bariloche, Argentina
Fully Resolved Simulations of Particle-Bed-Turbulence Interactions in Oscillatory Flows (Invited) (222006)
Sourabh Apte, Oregon State University, Corvallis, OR, United States and Chaitanya Ghodke, Oregon State University, School of Mechanical Industrial and Manufacturing Engineering, Corvallis, OR, United States
Testing the role of bedforms as controls on the morphodynamics of sandy braided rivers with CFD (215272)
Christopher Adam Unsworth1, Andrew Paul Nicholas2, Philip J Ashworth3, Jim Best4, Stuart N Lane5, Daniel R Parsons6, Gregory Sambrook Smith7, Chris Simpson8 and Robert John, Paul Strick8, (1)University of Exeter, Exeter, United Kingdom, (2)University of Exeter, Geography, Exeter, United Kingdom, (3)Univ of Brighton, Brighton, United Kingdom, (4)University of Illinois at Urbana Champaign, Department of Earth Science & Environmental Change, Champaign, United States, (5)University of Lausanne, Institute of Earth Surface Dynamics, Lausanne, Switzerland, (6)University of Hull, Energy & Environment Institute, Hull, United Kingdom, (7)University of Birmingham, School of Geography, Earth and Environmental Sciences, Birmingham, United Kingdom, (8)University of Brighton, Brighton, United Kingdom
Particle-Resolving Simulations of Bedform Migration Over Different Hydraulic Conditions and Different Particle Shapes (298592)
Rui Sun1, Heng Xiao1, Kyle Strom2 and Honglei Sun3, (1)Virginia Polytechnic Institute and State University, Blacksburg, VA, United States, (2)Virginia Tech, Civil and Environmental Engineering, Blacksburg, United States, (3)Zhejiang University, Hangzhou, China
3D Numerical simulation of bed morphological responses to complex in-streamstructures (226700)
Yuncheng Xu, Pennsylvania State University Main Campus, University Park, PA, United States and Xiaofeng Liu, Pennsylvania State University Main Campus, Department of Civil and Environmental Engineering, University Park, PA, United States
A Probabilistic Model for Sediment Resuspension (294488)
Allison Penko1, Margaret Palmsten1, Donya P Frank-Gilchrist2 and Samuel P Bateman3, (1)US Naval Research Laboratory, Washington, DC, United States, (2)NRC Postdoctoral Fellow, US Naval Research Laboratory, Stennis Space Center, MS, United States, (3)U.S. Naval Research Laboratory, Stennis Space Center, MS, United States

See more of: Earth and Planetary Surface Processes