Open AccessSPENDING BEACHES FOR A WAVE CANAL
Author(s) -
C. Marcou
Publication year - 1954
Publication title -
proceedings of conference on coastal engineering/proceedings of ... conference on coastal engineering
Language(s) - English
Resource type - Journals
eISSN - 2156-1028
pISSN - 0589-087X
DOI - 10.9753/icce.v5.20
Subject(s) - reflection (computer programming) , reflection coefficient , obstacle , plane (geometry) , geology , geometry , optics , physics , mathematics , computer science , geography , archaeology , programming language
The principal obstacle to the production of a pure wave in a laboratory-wave canal of short length is the presence of a wave reflected from the down-stream extremity of the canal. Different artifices are used to reduce the value of the coefficient of reflexion. It is of important to see that these setups occupy as small a length of the canal as possible.
We have undertaken the study of a simple mechanism, easily constructed, whose parameters can be defined rigourously and whose action is consequently consistent. The different parameters can be varied systematically so that the values which give a minimum coefficient of reflection for • given Incident wave can be determined.
The mechanism consists of a spending beach made of a thin aluminium plate ; the plate has the same width as the wave-canal, its lines of greatest slope being parallel to the plane of symmetry of the canal.