A Theoretical and Experimental Study of Undertow
- 1 November 1985
- proceedings article
- Published by American Society of Civil Engineers (ASCE)
Abstract
It is well known that on a three-dimensional beach large volumes of water carried shorewards by the breakers feed longshore currents, which eventually escape back through the breaker line, often as rip currents. In a steady two-dimensional situation, however, the mass flux represented by (among other things) the surface roller in the breakers returns as a seaward current close to the bottom. This current is called the undertow. In this paper theoretical results for the undertow are compared with the results of recent laboratory experiments.Keywords
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