{"id":364218,"date":"2024-04-25T13:31:47","date_gmt":"2024-04-25T13:31:47","guid":{"rendered":"\/forum\/forums\/topic\/udf-diffusivity-in-battery-msmd-model\/"},"modified":"2024-04-25T13:42:42","modified_gmt":"2024-04-25T13:42:42","slug":"udf-diffusivity-in-battery-msmd-model","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/udf-diffusivity-in-battery-msmd-model\/","title":{"rendered":"UDF diffusivity in Battery MSMD model"},"content":{"rendered":"

Hello,<\/p>\n

I have been trying to use the battery MSMD model (I’m using Ansys 2023R1) for my LFP 32700 cell. I have been referring to this<\/a> YouTube series. I have a doubt regarding the material properties. In this video, which uses an older version of Ansys, there is a separate parameter called UDS diffusivity in kg\/m-s units. However, in 2023R1, it lies under the electrical conductivity option, but in a completely different unit, S\/m. <\/p>\n

My UDS diffusivity in older version was defined-per-uds in kg\/m-s with the following values:
uds-0 : 1.19e6
uds-1 : 9.83e5<\/p>\n

Are these completely different things with different units? Can I put the values from previous versions in kg\/m-s, into 2023R1 in S\/m? Can someone please give me some clarity in terms of units, definitions, or conversions of the numbers (from kg\/m-s to S\/m, if any)?<\/p>\n

Thank you for your time. <\/p>\n","protected":false},"template":"","class_list":["post-364218","topic","type-topic","status-closed","hentry","topic-tag-add-material","topic-tag-battery","topic-tag-battery-cooling","topic-tag-battery-modeling","topic-tag-battery-pack-1","topic-tag-battery-simulation","topic-tag-define-diffusivity","topic-tag-fluent","topic-tag-fluent-uds","topic-tag-msmd-battery-model","topic-tag-msmd-battery-module-1","topic-tag-uds"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t