Wave equation - Poor man's solution
- Physicist's idea:
- surround the interior region with damping material
- add a friction term to the wave equation
- damping τ(x) = 0 inside, gradually increasing in
the boundary
- careful choice of τ(x) to minimize reflections
- Result:
-
- perfect for our purpose (teaching!)
- but reflections remain, depending on wave length
and incident angle
-