You can use the following link to get the anwer

https://www.researchgate.net/post/Adding_a_new_material_in_ANSYS_Workbench_Library

Thanks, Babu Rao Ponangi

I already define new library of material in engineering data.

But the problem is, When I go to setup in fluent and choose user-defined to select the file, the library file didn't show up.

So, I don't know how to extract that material from engineering data to fluid setup.

Link the created material properties of engineering data with fluid setup.

You need to define your materials with Numbers and use the MAT command when you need to change the material before any use in batch mode programming or corresponding commands in an interactive session :

MAT,Number (can be defined previously and may be used when needed)

after that use the following corresponding commands :

ET,.. (to define the element type)

MP,.. (to define one of its properties EX, NUXY, DENS, ..)