I am doing example of Biot poroelasticity with poroelasticity module, in the "Poroelasticity---------->poroelasticity material 1", why fluid properties should come from "fluid", but the porous elastic material property should come from "Domain material", why the porous elastic material property should come from "Porous1 or Porous 2"? Anybody who have done this example can tell me the reason?
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