Change the formulation used for calculating Bed shear Stress for scour Change the formulation used for calculating Bed shear Stress for scour https://oss.deltares.nl/c/message_boards/find_thread?p_l_id=1806675&threadId=704132 2020-08-12T06:43:05Z 2020-08-12T06:43:05Z Change the formulation used for calculating Bed shear Stress for scour Nima Attari https://oss.deltares.nl/c/message_boards/find_message?p_l_id=1806675&messageId=704131 2015-08-11T17:28:44Z 2015-08-11T17:28:44Z Hi, my thesis is about modeling of local scour around circular bridge pier<br /><br /><br />Is there any way in delft3D to change the formulation that is used in calculating Bed Shear Stress?<br /><br />I want to calculate Tb (bed shear stress) with using Shear Velocity (u*) ------&gt; Tb = (row) x u* ^ 2 (row = density)<br /><br />AND<br /><br />I want to calculate u* (shear velocity) with using Kb (turbulent energy at bed level which is calculated with k-e model) ------&gt; u* ^ 2 = Kb / SQRT(Cmoo) Cmoo = constant = 0.09<br /><br /><br />Thanks Nima Attari 2015-08-11T17:28:44Z