EXPERIMENTAL STUDY ON BED-LOAD SEDIMENT TRANS- PORT IN IRREGULAR WAVE-CURRENT COEXISTENT FIELD

摘要

In order to evaluate bed-load sediment transport in an irregular wave-cur- rent coexistent field, a series of experiments were complete in laboratory with an irregu- larly oscillating tray, which was specially designed to simulate the irregular wave-current coexistent field. Experimental results are presented on the initial motion of sediment and the rates of transport over flat horizontal bed. Testing conditions included three interac- tion angles , 0°,45°, 90° and six kinds of grain sizes.