Computational Mechanics Research and Support for Aerodynamics ...

List of Figures
Figure 2.1: Initial bed shear profile along flume with flooded bridge deck at 3.83 m to 4.09 m .............. 13
Figure 2.2: Bed shear after scour hole has fully formed ............................................................................ 14
Figure 2.3: Development of scour hole depth for simulation (red) and experiment (blue) ....................... 14
Figure 2.4: Initial streamwise velocity distribution around bridge deck .................................................... 15
Figure 2.5: Final velocity distribution after scour around flooded bridge deck. ........................................ 16
Figure 2.6: Reduced symmetric section of the barrel considered from a trough to trough ..................... 18
Figure 2.7: Refined mesh area with respect to the base created using a volumetric control ................... 19
Figure 2.8: Mesh scenes of the various cases used for mesh refinement studies .................................... 20
Figure 2.9: Sectional planes created at the trough and the crest to resolve flow parameters ................. 21
Figure 2.10: Uniform strips created using “Thresholds” feature available in STAR-CCM+ ........................ 22
Figure 2.11: Surface averaged velocity vs. length of the plane section (created at a trough) plot for
meshes 1-3 .................................................................................................................................................. 23
Figure 2.12: Surface averaged velocity vs. length of the plane section (created at a trough) plot for
meshes 4-6 .................................................................................................................................................. 24
Figure 2.13: Line probes created at a trough and a crest along the flow field in the reduced barrel ....... 25
Figure 2.14: Velocity profiles of the different mesh cases with base size as 10mm plotted at a crest ..... 25
Figure 2.15: Velocity profiles of the different mesh cases with base size 5mm plotted at a crest ........... 26
Figure 2.16: Velocity profiles of the different mesh cases with base size 10mm plotted at a trough ...... 27
Figure 2.17: Velocity profiles of the different mesh cases with base size 5 mm plotted using at a trough
.................................................................................................................................................................... 28
Figure 2.18: Velocity plots of the various mesh cases in the mesh refinement study .............................. 29
Figure 2.19: Three-dimensional CAD model for multi-phase simulations ................................................. 30
Figure 2.20: Dimensional details of the flume (front and top views) ........................................................ 31
Figure 2.21: Velocity distribution across trough section of the multi-phase model for 3 inch water depth
.................................................................................................................................................................... 32
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