Linear Wave Theory

Linear wave theory is also known as:
  • Airy theory;
  • Sinusoidal wave theory;
  •  Small amplitude wave theory.
Description:
  • It has only single sinusoidal component;
  • It is the simplest wave theory obtained by taking the wave height, H to me much smaller than both the wave length, ╬╗ and water depth, d. 
  • Wave crest height, AC = Wave trough height, AT and is denoted the wave amplitude, A, hence H=2A.
  • Linear wave theory is the first approximation to the wave motion. In order to achieve theoretical results closer to the reality requires to solve the equations to higher perturbations (non-linear system).

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