Learning Forum

[Luigi0]

Hi,nis it possible to create a perfeclty matched layer in fluent for absorption of waves?n

[Rob]

Perfectly matched to what? n

[Luigi0]

The perfeclty matched layer is an artificial absorbing layer for the wave equationsnn

[Rob]

You mean a damping layer? In theory it should be possible with source terms, how you figure out the damping function isn't something I can answer. Note, if they're water waves there's a numerical beach model in Fluent. n

[Luigi0]

In reality they are pressure waves. I try with the general non reflecting boundary conditions but I don't see any improvements when I apply it. So I'm asking if there are other solutions.n

[Rob]

If the boundary is affecting the result the easier approach is to move the boundary. Using numerical methods is an aide, not necessarily a full solution. n