Difference between revisions of "Meeting:Abstract 2011 CSDMS meeting-029"

From CSDMS
m
m (Text replacement - "USA" to "United States")
 
(4 intermediate revisions by 2 users not shown)
Line 1: Line 1:
 +
<!--{{CSDMS meeting program template
 +
|CSDMS meeting first hydrological choice=MODFLOW
 +
|CSDMS meeting second hydrological choice=TopoFlow
 +
|CSDMS meeting first terrestrial choice=Delft3D
 +
|CSDMS meeting second terrestrial choice=CHILD
 +
|CSDMS meeting first coastal choice=Delft3D
 +
|CSDMS meeting second coastal choice=Delft3D
 +
|CSDMS meeting first marine choice=Delft3D
 +
|CSDMS meeting second marine choice=Sedflux
 +
|CSDMS meeting first carbonate choice=Cyclopath
 +
|CSDMS meeting second carbonate choice=Cyclopath
 +
|CSDMS meeting first tool choice=GRASS
 +
|CSDMS meeting second tool choice=GRASS
 +
}}-->
 
{{CSDMS meeting personal information template
 
{{CSDMS meeting personal information template
 
|CSDMS meeting first name=Jennifer
 
|CSDMS meeting first name=Jennifer
Line 5: Line 19:
 
|CSDMS meeting city=Tucson
 
|CSDMS meeting city=Tucson
 
|CSDMS meeting state=Arizona
 
|CSDMS meeting state=Arizona
|CSDMS meeting country=USA
+
|CSDMS meeting country=United States
 
|CSDMS meeting email address=gduan@email.arizona.edu
 
|CSDMS meeting email address=gduan@email.arizona.edu
 
|CSDMS meeting phone=520-626-5946
 
|CSDMS meeting phone=520-626-5946
Line 21: Line 35:
 
|CSDMS meeting coauthor town-city=Tucson
 
|CSDMS meeting coauthor town-city=Tucson
 
|State=Arizona
 
|State=Arizona
|CSDMS meeting coauthor country=USA
+
|CSDMS meeting coauthor country=United States
 
}}
 
}}
 
{{CSDMS meeting abstract template
 
{{CSDMS meeting abstract template
|CSDMS meeting abstract=A two-dimensional numerical model was developed for simulating free surface flow. The model is based on the solutions of two-dimensional depth averaged Navier-Stokes equations. A finite volume method is applied such that mass conservation is satisfied both locally and globally. The model adopted the two-step, high resolution MUSCL-Hancock scheme. This Godunov type scheme is used together with the approximate Riemann solver. The boundary cells are treated as cut-cells in order to accommodate arbitrarily geometries of natural rivers. There are sixteen types of cut-cells depending on the slope of the boundary intersection with the cell. A cell merging technique is incorporated in the model that combines small cells with neighboring cells to create a larger cell, helps keeping the CFL condition. The cut-cells approach permits a fully boundary-fitted mesh without implementing a complex mesh generation procedure for irregular geometries. The model is verified by several laboratory experiments including unsteady flow passing through cylindrical piers and dam break flow in a rectangular channel. The model is also applied to simulate a 100-year flood event occurred at the Huron Island reach of the Mississippi River, where flow paths in the island formed a complex channel network as flood propagates.  
+
|CSDMS meeting abstract=A two-dimensional numerical model was developed for simulating free surface flow. The model is based on the solutions of two-dimensional depth averaged Navier-Stokes equations. A finite volume method is applied such that mass conservation is satisfied both locally and globally. The model adopted the two-step, high resolution MUSCL-Hancock scheme. This Godunov type scheme is used together with the approximate Riemann solver. The boundary cells are treated as cut-cells in order to accommodate arbitrarily geometries of natural rivers. There are sixteen types of cut-cells depending on the slope of the boundary intersection with the cell. A cell merging technique is incorporated in the model that combines small cells with neighboring cells to create a larger cell, helps keeping the CFL condition. The cut-cells approach permits a fully boundary-fitted mesh without implementing a complex mesh generation procedure for irregular geometries. The model is verified by several laboratory experiments including unsteady flow passing through cylindrical piers and dam break flow in a rectangular channel. The model is also applied to simulate a 100-year flood event occurred at the Huron Island reach of the Mississippi River, where flow paths in the island formed a complex channel network as flood propagates.
 
}}
 
}}
 
{{blank line template}}
 
{{blank line template}}
{{CSDMS meeting program template
+
{{CSDMS meeting program template1
|CSDMS meeting first hydrological choice=MODFLOW
+
|CSDMS meeting first day choice=Sedflux
|CSDMS meeting second hydrological choice=TopoFlow
+
|CSDMS meeting second day choice=Delft3D
|CSDMS meeting first terrestrial choice=Delft3D
+
|CSDMS meeting third day choice=TauDEM
|CSDMS meeting second terrestrial choice=CHILD
 
|CSDMS meeting first coastal choice=Delft3D
 
|CSDMS meeting second coastal choice=Delft3D
 
|CSDMS meeting first marine choice=Delft3D
 
|CSDMS meeting second marine choice=Sedflux
 
|CSDMS meeting first carbonate choice=Cyclopath
 
|CSDMS meeting second carbonate choice=Cyclopath
 
|CSDMS meeting first tool choice=GRASS
 
|CSDMS meeting second tool choice=GRASS
 
 
}}
 
}}
 
{{CSDMS meeting logistics template
 
{{CSDMS meeting logistics template

Latest revision as of 15:10, 10 June 2017


Browse  abstracts

CSDMS all hands meeting 2011

Depth-Averaged Two Dimensional Model Using Cartesian Cut-Cell Approach

Jennifer Duan, Univ. of Arizona Tucson Arizona, . gduan@email.arizona.edu
Chunshui Yu, Univ. of Arizona Tucson Arizona, United States.


[[Image:|300px|right|link=File:]]A two-dimensional numerical model was developed for simulating free surface flow. The model is based on the solutions of two-dimensional depth averaged Navier-Stokes equations. A finite volume method is applied such that mass conservation is satisfied both locally and globally. The model adopted the two-step, high resolution MUSCL-Hancock scheme. This Godunov type scheme is used together with the approximate Riemann solver. The boundary cells are treated as cut-cells in order to accommodate arbitrarily geometries of natural rivers. There are sixteen types of cut-cells depending on the slope of the boundary intersection with the cell. A cell merging technique is incorporated in the model that combines small cells with neighboring cells to create a larger cell, helps keeping the CFL condition. The cut-cells approach permits a fully boundary-fitted mesh without implementing a complex mesh generation procedure for irregular geometries. The model is verified by several laboratory experiments including unsteady flow passing through cylindrical piers and dam break flow in a rectangular channel. The model is also applied to simulate a 100-year flood event occurred at the Huron Island reach of the Mississippi River, where flow paths in the island formed a complex channel network as flood propagates.