3-D Hydro-dynamic Animation of Afflux at Masonry Arched Bridge (1% annual probability flood event - Downstream View)
The above animation shows the preliminary results of OpenFOAM modelling of a masonry arched bridge in Devon in the UK for an extreme flood event equivalent to to a 1 in 100 year return period. The objective of the modelling was to determine the bed shear stresses along the piers to determine whether the structure was vulnerable to scour, undercutting of the foundations and possible collapse in extreme flooding events. This particular view is taken from downstream of the bridge and shows the water surface and velocity vectors as the flow begins to affect the structure.
3-D Hydro-dynamic Animation of Afflux at Masonry Arched Bridge (1% annual probability flood event - Cross Sectional View)
The above animation also shows the preliminary results of OpenFOAM modelling of a masonry arched bridge in Devon in the UK but in this case the view is on a longitudianal section through the bridge. This shows velocity vectors throughout the water column. The results of this exercise indicated that the extent of the model had to be increased in both an upstream and downstream direction to minimise the impact of the numerical flume of the results.
3-D Hydro-dynamic Animation of Afflux at Masonry Arched Bridge (1% annual probability flood event - Plan View)
The above animation also shows the preliminary results of OpenFOAM modelling of a masonry arched bridge in Devon in the UK. The wake caused by the bridge piers is clearly evident as the model runs to its comclusion with higher water levels shown in red and lower water levels downstream of the bridge shown in blue.