How to calculate bottom shear stress ?How to calculate bottom shear stress ?https://dlt-acc.firelay.cloud/c/message_boards/find_thread?p_l_id=3231581&threadId=53736642026-05-15T15:09:28Z2026-05-15T15:09:28ZHow to calculate bottom shear stress ?Zhen Weihttps://dlt-acc.firelay.cloud/c/message_boards/find_message?p_l_id=3231581&messageId=53736632023-04-28T11:49:43Z2022-10-17T01:28:03ZHi, <br /><br />After performing the wave-flow coupling simulation, the <strong><em>bed shear stress</em></strong> can be viewed in the<strong> trim-name.dat</strong> file. Also, when computing WAQ, the shear stress can be input as item<strong> <em>total bottom shear stress</em> (<em>Tau</em>)</strong>. However, I found that <em><strong>Tau</strong></em> is very different from<em><strong> bed shear stress</strong></em>, and the former is 3 orders of magnitude smaller than the latter. Why is this?<br /><br />What should I do if I want to use the<em><strong> bed shear stress</strong></em> output in FLOW as WAQ input directly?<br /><br />Best wishes,<br />ZhenZhen Wei2022-10-17T01:28:03Z