37 lines
1.6 KiB
Markdown
37 lines
1.6 KiB
Markdown
# FreeCAD fluid material library
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It's intended to gather the most common fluid properties, water, air, which are useful for other modules and workbenches.
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## User defined material
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To prevent the database from becoming inefficiently large it is only limited to commonly used variables at 20 degrees Celsius at 1 atm.
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Users can defined new material, either in Fem material card editor, or directly generate textual material file, * .FCMat, see example in this folder.
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To enable new material, go to FreeCAD menu "Edit->Preference..." Cfd preference page (select on the left panel) and switch to materiai tab on the right.
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Browse to your material folder, and save/apply this preference, new material will be Material with same name as FreeCAD material has higher priority,
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so user defined` Water` material will not appear in Fem material task panel's dropbox list, just give it a different name!
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### Edit material value
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Please verify the fluid material properties before use. It aims to serve as a quick reference and does not aim to be an extended look up table.
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## Add new material to Material module
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1. follow examples in material folders to create new material file
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2. stick to the meta data definition in `src/Mod/Material/Templatematerial.yml` for property name
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3. add the file name into the `src/Mod/Material/CMakeLists.txt` , so the new files can be installed to the properly place during compiling and installation.
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## Change log
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CfdOF module authored 5 material types, values are taken from FM White (2011) Fluid Mechanics.
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Currently, 3 (Water, Air, None) are merged into Fem module and maintained by Cfd module author, Qingfeng Xia
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