Hi everyone!
I am trying to understand how the paper (I attached the figure below) has done the plot in dimensionless (normalized r and z directions) geometry?
it is a 2D axisymmetry, acoustics simulation. The real geometry dimension in lambda(0-lam for the r direction, and -lam to lam for the z direction) for the radius of circle. the results is ploted in the normalized dimensions( 0-1 for the r direction and -1 to 1 for the z).
I was wondering if anyone can help me how to do this in comsol.
Thanks in advance.