CMS-Flow:Bottom Friction

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