[com1]: Varying rheological parameters according to sediment concentration

[JuLa96]

Concerning rheological model by O´Brien and Julien:
Does it make sense to have C as an input parameter that varies depending on e.g. sediment concentration (similar to c_res in resistance model)?

[JuLa96]

Sensitivity analysis will be conducted to assess the influence of the volumetric sediment concentration on the model