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Diagram Wave Reflection at a Structure

The displayed wave profiles are calculated according to the linear wave theory of Airy/Laplace.
Therefore, the water surface elevation follows the equation η(x,t)=H2cos(kxωt).

The wave energy is calculated as E=18ρwgH2, while the coefficients presented are as follows: Kr=HrHi, Kt=HtHi, Kd=HdHi. Furthermore: Sea water density ρw=1025kgm3, as well as acceleration due to gravity g=9.81ms2.

Since the wave energy of the incoming wave is maintained according to Ei=Er+Et+Ed, follows: Kr2+Kt2+Kd2=1.

Lernplattform des Leichtweiß-Institut für Wasserbau

  •  ___ Incoming wave
  •  ___ Reflected wave
  •  ___ Resulting water surface elevation
  •  ___ Transmitted wave
-2L-7/4L-6/4L-5/4L-L-3/4L-2/4L-1/4L01/4L2/4L3/4LL-3/2H-H-1/2H01/2HH3/2H
Location xWater surface elevation η












The field of Wave Transformation is part of the module Basic Coastal Engineering within the specialization Coastal and Ocean Engineering of the master programmes Civil and Environmental Engineering.