CMS-Flow:Bottom Friction
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Bottom Friction
Flow without Waves
In the situation without waves, the bottom shear stress is calculated based on the quadratic formula
math \tau_m = \tau_c = c_b|U|U /math
where math c_b /math is the bottom friction coefficient, math U/math is the depth-averaged current velocity.
Flow with Waves
In the case with waves, the bottom friction is calculated as
math \tau_m = \tau_c = c_b|U|U /math