Open AccessSCALE EFFECTS W WAVE ACTION THROUGH POROUS STRUCTURES
Author(s) -
J. W. Johnson,
Hideo Kondo,
R. Kallihan
Publication year - 1966
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.v10.58
Subject(s) - breakwater , rubble , scale model , geotechnical engineering , energy (signal processing) , channel (broadcasting) , turbulence , scale (ratio) , porosity , wind wave , geology , materials science , mechanics , engineering , physics , electrical engineering , quantum mechanics , aerospace engineering , oceanography
The energy in waves which impinge on a porous structure, such as a rubblemound breakwater, is divided into reflected energy, transmitted energy, and the energy dissipated by turbulence within the structure. To obtain information on the reliability of using models to predict the transmission of wave energy through a rubble medium, a series of three models were constructed and tested in the 1 ft. by 3 ft. by 106 ft. wave channel at the University of California. The models consisted of rectangular, vertical-faced, wire baskets (constructed of expanded metal lath) which were filled with crushed stone. The three models were 0.5, 1.0, and 2.0 ft. in length, respectively. All models were 1 ft. wide and 3 ft. high. Each structure was installed in turn in the wave channel and subjected to wave action with the wave height being measured both seaward (H ) and leeward (Hp) by resistance-type wave gages.