1D Bridges: Difference between revisions
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=Loss Theory=
==Contraction/Expansion Losses==
Energy loss is caused by the flow contraction due to the expansion of water after the vena-contracta inside a bridge section and the flow expansion downstream the bridge. The contraction/expansion loss coefficients (or the entry/exit loss coefficients) can be spesified for TUFLOW 1D BB bridge using the following attributes:<br>
* EntryC_or_WSa: the entry loss coefficients (default = 0.5).
* ExitC_or_WSb: the exit loss coefficients (default = 0.5).
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[[File:Structure_Contraction_Expantion_Losses.png|600px]]
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