Why does an untransportable substance have a boundary outflow in .mon file? https://dlt-acc.firelay.cloud/c/message_boards/find_thread?p_l_id=3231581&threadId=5681403 2026-05-15T13:28:17Z 2026-05-15T13:28:17Z Zhen Wei https://dlt-acc.firelay.cloud/c/message_boards/find_message?p_l_id=3231581&messageId=5681402 2023-02-25T04:05:46Z 2023-02-25T04:05:46Z

Hi,<br /><br />I added a new substance to WAQ and made it non-water-transportable (substance ID: Veg, in attachment). But when I checked the monitor file (.mon file), I found boundary outflow (attachment). I don&#39;t understand that. Why does an untransportable substance have a boundary outflow? As I understand it, such substances should only participate in local processes and not move through space.<br /><br />And by the way, in terms of the columns, why isn&#39;t the total mass flow equal to the sum of the other terms?<br /><br />I would appreciate your help.<br /><br />Regards,<br />Zhen

Zhen Wei 2023-02-25T04:05:46Z