Journal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics (AM))
Online ISSN : 2185-4661
ISSN-L : 2185-4661
Journal of Applied Mechanics Vol.14 (Special Feature)
Cyclic steps formed by turbidity currents
Duleeka Dahampriya DIASNorihiro IZUMIMiwa YOKOKAWA
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2011 Volume 67 Issue 2 Pages I_503-I_510

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Abstract
Levees of channels formed due to turbidity currents on submarine fans are often covered with step like bedforms. Circumstantial evidences emerged with numerical and experimental studies have suggested these sediment waves should probably be cyclic steps. The formation of cyclic steps in sub-aqueous environments through a mathematical perspective is presented in this research. A mathematical model preserving essential physics of the system is solved for one step wave length to obtain a preserved step shape of upstream migrating steps and the behavior of characteristic parameters governing this cyclic step formation phenomenon.
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© 2011 by Japan Society of Civil Engineers
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