part module - chess board pattern tracer concentrationpart module - chess board pattern tracer concentrationhttps://oss.deltares.nl/c/message_boards/find_thread?p_l_id=1806765&threadId=7283812024-03-29T04:59:50Z2024-03-29T04:59:50ZRE: part module - chess board pattern tracer concentrationPhil Shepperdhttps://oss.deltares.nl/c/message_boards/find_message?p_l_id=1806765&messageId=30710512020-06-19T08:44:15Z2020-06-19T08:44:15ZI know this question is very old, but the answer is that the PART timestep is smaller than the timestep in the decoupled HDs. It needs to be the same!! Odd, I know. Phil Shepperd2020-06-19T08:44:15ZRE: part module - chess board pattern tracer concentrationQinghua Yehttps://oss.deltares.nl/c/message_boards/find_message?p_l_id=1806765&messageId=7385362015-10-01T17:22:23Z2015-10-01T17:22:23ZHi Hailiang,<br /><br />Interesting! did you also check if the hydrodynamics gives good pattern?<br /><br />Cheers,<br /><br />QinghuaQinghua Ye2015-10-01T17:22:23Zpart module - chess board pattern tracer concentrationHailiang Shenhttps://oss.deltares.nl/c/message_boards/find_message?p_l_id=1806765&messageId=7283802015-09-16T19:59:31Z2015-09-16T19:58:28ZI am modelling oil spill for a river section with D-Part. I am only modelling instantaneous release, and get a chess board pattern for tracer concentration as seen attached.<br /><br />To me it does not make sense. Can anyone help to answer why the concentration is not continuous in space? Thanks<br /><br />HailiangHailiang Shen2015-09-16T19:58:28Z