Accession Number : ADA260855


Title :   Experimental Study of Monochromatic Wave-Ebb Current Interaction. Volume 1. Main Text and Appendix A


Descriptive Note : Final rept.,


Corporate Author : COASTAL ENGINEERING RESEARCH CENTER VICKSBURG MS


Personal Author(s) : Briggs, Michael J ; Green, Debra R


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a260855.pdf


Report Date : Dec 1992


Pagination or Media Count : 99


Abstract : This report describes an experimental study of the interaction of monochromatic waves and an ebb current in and near a shallow entrance channel. Laboratory experiments were performed in a three-dimensional basin with a 1 vertical (IV) on 30 horizontal (30H) fixed-bed slope. Two entrance channel configurations were tested: one with a IV on IH side slope and the other with vertical sides. Both had equal cross-sectional areas and were 1-m wide, 10-cm deep, and 5.5-m long. Four small amplitude waves were generated using the directional spectral wave generator (DSWG). These waves had wave periods of 0.75 and 1.50 sec, directions of 0 deg and 20 deg (relative to normal to the DSWG), and wave heights of 5.0 cm. Steady ebb currents of 10, 20, and 30 cm/sec were generated using a 0.16-M3 pump. Measurements were made with capacitance wave gages and triaxial ultrasonic current meters in a 5-m by 6-m area. The six cross-shore transects had seven gages with a 1-m spacing between gages.... Ebb current, Wave-current interaction, Three-dimensional physical models.


Descriptors :   *OCEAN WAVES , *OCEAN CURRENTS , *COASTAL ENGINEERING , *INLETS(WATERWAYS) , MEASUREMENT , WIND , SHALLOW WATER , ULTRASONICS , PUMPS , AMPLITUDE , STILLING BASINS , SHORE PROTECTION , SHORES , CAPACITANCE , GAGES , HYDRAULIC MODELS , CHANNELS(WATERWAYS) , HEIGHT , AIR WATER INTERACTIONS , SLOPE , CONFIGURATIONS , SEDIMENT TRANSPORT , THREE DIMENSIONAL , MODELS , COASTAL REGIONS


Subject Categories : Physical and Dynamic Oceanography
      Civil Engineering


Distribution Statement : APPROVED FOR PUBLIC RELEASE