Nature of Wave Attenuation in Open Channel Flow

by Victor Miguel Ponce, (M.ASCE), Assoc. Prof. of Civ. Engrg.; San Diego State Univ., San Diego, Calif. 92182,


Serial Information: Journal of the Hydraulics Division, 1982, Vol. 108, Issue 2, Pg. 257-262


Document Type: Journal Paper

Discussion: Norscini Ruben (See full record)
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Abstract: The identification of the term or group of terms which will cause a free-surface flow to dissipate is investigated. It is shown that wave attenuation is caused by the interaction of the kinematic term (friction and bottom slope) with the local acceleration term. When the latter is absent or negligible, wave attenuation is caused by the interaction of the kinematic term with the pressure gradient, or conventive acceleration terms, or both.

Subject Headings: Wave attenuation | Kinematic waves | Open channel flow | Free surfaces | Friction | Slopes | Wave pressure

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