Porous plate manual: 2 axes in 1 expression (x vs ksi)Porous plate manual: 2 axes in 1 expression (x vs ksi)https://oss.deltares.nl/c/message_boards/find_thread?p_l_id=183924&threadId=1338322024-03-28T23:37:05Z2024-03-28T23:37:05ZPorous plate manual: 2 axes in 1 expression (x vs ksi)Matthias Dhttps://oss.deltares.nl/c/message_boards/find_message?p_l_id=183924&messageId=1338312012-04-17T21:13:53Z2012-04-17T21:06:26ZHello,<br /><br />In the flow manual e.g. section 9.10.2 the friction term M for a porous plate is defined.<br />I actually expect "delta ksi" instead of "delta x" in the denominator.<br />Because M_ksi is defined along a ksi-line, so do the velocity u.<br /><br />How can I deal with the combination of the two axes in one expression?<br />Futhermore, I don't understand how a change in the (x,y)-coordinate system can change the friction term.<br />So that's why I expect it to be "delta ksi", since it then would not be dependent on the (x,y)-system.<br /><br />Thanks!Matthias D2012-04-17T21:06:26Z