WAVE REFLECTION AND TRANSMISSION IN CHANNELS OF VARIABLE SECTION

E.L. Bourodimos, A.T. Ippen

Abstract


Reflection and transmission phenomena were investigated in a laboratory channel for transitions of linearly varying depth and/or width terminating in channels of reduced cross-section. Upstream wave characteristics were varied from deep to shallow water waves by changing wave frequencies, amplitudes and channel depths over a wide spectrum of conditions. Experimental values were corrected to correspond to transmission in an endless channel. The reflection and transmission coefficients are given as functions of the pertinent dimensionless parameters such as: group velocity ratio, channel depth ratio and wave steepness. Associated wave energies were also evaluated.

Keywords


wave reflection; waves in channels; wave transmission

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