2018 CSDMS meeting-026: Difference between revisions
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|CSDMS_meeting_select_clinics3_2018= | |CSDMS_meeting_select_clinics3_2018=4) Artificial Intelligence & Machine Learning | ||
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{{CSDMS meeting abstract template 2018}} | |CSDMS meeting abstract title=3D Bedrock Channel Evolution with Smoothed Particle Hydrodynamics Coupled to a Finite Element Earth | ||
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|CSDMS meeting coauthor first name abstract=Peter | |||
|CSDMS meeting coauthor last name abstract=Koons | |||
|CSDMS meeting coauthor institute / Organization=University of Main | |||
|CSDMS meeting coauthor town-city=Orono | |||
|CSDMS meeting coauthor country=United States | |||
|State=Maine | |||
|CSDMS meeting coauthor email address=kyle.peter.koons@maine.edu | |||
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{{CSDMS meeting abstract template 2018 | |||
|CSDMS meeting abstract=An enduring obstacle to reliable modeling of the short and long-term evolution of the stream channel-hillslope ensemble has been the difficulty of estimating stresses generated by stream hydrodynamics. To capture the influence of complex three-dimensional (3D) flows on bedrock channel evolution, we derive the contribution of hydrodynamic stresses to the stress state of the underlying bedrock through a Smoothed Particle Hydrodynamics (SPH) approximation of the Navier-Stokes equations as calculated by the DualSPHysics code (Crespo et al., 2015). Coupling the SPH flow solutions to the stress-strain formulation of the Failure Earth REsponse Model (FERM) (Koons et al., 2013) provides three-dimensional erosion as a function of the strength-stress ratio of each point in the computational domain. From the coupling of SPH and FERM we gain a 3D physics-based erosion scheme and a two-way link between complex flows and hillslope dynamics in a finite element framework. | |||
|CSDMS meeting posterPDF=Richmond_CSDMS_POSTER_May2018.pdf | |||
|CSDMS meeting posterPNG=Richmond_CSDMS_POSTER_May2018.png | |||
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Latest revision as of 15:22, 4 August 2018
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3D Bedrock Channel Evolution with Smoothed Particle Hydrodynamics Coupled to a Finite Element Earth
An enduring obstacle to reliable modeling of the short and long-term evolution of the stream channel-hillslope ensemble has been the difficulty of estimating stresses generated by stream hydrodynamics. To capture the influence of complex three-dimensional (3D) flows on bedrock channel evolution, we derive the contribution of hydrodynamic stresses to the stress state of the underlying bedrock through a Smoothed Particle Hydrodynamics (SPH) approximation of the Navier-Stokes equations as calculated by the DualSPHysics code (Crespo et al., 2015). Coupling the SPH flow solutions to the stress-strain formulation of the Failure Earth REsponse Model (FERM) (Koons et al., 2013) provides three-dimensional erosion as a function of the strength-stress ratio of each point in the computational domain. From the coupling of SPH and FERM we gain a 3D physics-based erosion scheme and a two-way link between complex flows and hillslope dynamics in a finite element framework.
