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Equilibrium Beach Profile with Net C...

Mallavarapu, Annapurna Surya Sravani.

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Equilibrium Beach Profile with Net Cross-shore Sand Transport.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Equilibrium Beach Profile with Net Cross-shore Sand Transport./
Author:	Mallavarapu, Annapurna Surya Sravani.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2018,
Description:	87 p.
Notes:	Source: Masters Abstracts International, Volume: 58-01.
Contained By:	Masters Abstracts International58-01(E).
Subject:	Ocean engineering. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10810992
ISBN:	9780438260153

Equilibrium Beach Profile with Net Cross-shore Sand Transport.
Mallavarapu, Annapurna Surya Sravani.

Equilibrium Beach Profile with Net Cross-shore Sand Transport. - Ann Arbor : ProQuest Dissertations & Theses, 2018 - 87 p.

Source: Masters Abstracts International, Volume: 58-01.

Thesis (M.C.E.)--University of Delaware, 2018.

Periodic beachfill placement and frequent overwash result in net offshore and onshore sand transport, respectively. Three tests consisting of fifty 400-s runs were conducted in a small-scale wave flume to examine the effect of net cross-shore sand transport on an equilibrium profile. The foreshore of an equilibrium profile with no net sand transport shifted seaward after periodic sand placement near the shoreline. Frequent sand overwash resulted in the landward shift of the shoreline. The profile changes among the three tests were relatively small and the shoreline shifts were less than 0.1 m. An analytical model for an equilibrium profile with net cross-shore sand transport is developed by approximating existing formulas for onshore bed load and offshore suspended sand transport in the inner surf zone. The model predicts the horizontal shift of the equilibrium profile under net cross-shore sand transport, which is the maximum at the shoreline and approaches zero at the closure depth. The model calibrated using the three tests are used to estimate the seaward shift of the shoreline on periodically-nourished beaches of prototype scale. The estimated shift is of the order of 1 m or less but will need to be verified using field data.

ISBN: 9780438260153Subjects--Topical Terms:

660731
Ocean engineering.

Equilibrium Beach Profile with Net Cross-shore Sand Transport.
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035 $a (MiAaPQ)AAI10810992
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100 1 $a Mallavarapu, Annapurna Surya Sravani. $3 3426568
245 1 0 $a Equilibrium Beach Profile with Net Cross-shore Sand Transport.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2018
300 $a 87 p.
500 $a Source: Masters Abstracts International, Volume: 58-01.
500 $a Adviser: Nobuhisa Kobayashi.
502 $a Thesis (M.C.E.)--University of Delaware, 2018.
520 $a Periodic beachfill placement and frequent overwash result in net offshore and onshore sand transport, respectively. Three tests consisting of fifty 400-s runs were conducted in a small-scale wave flume to examine the effect of net cross-shore sand transport on an equilibrium profile. The foreshore of an equilibrium profile with no net sand transport shifted seaward after periodic sand placement near the shoreline. Frequent sand overwash resulted in the landward shift of the shoreline. The profile changes among the three tests were relatively small and the shoreline shifts were less than 0.1 m. An analytical model for an equilibrium profile with net cross-shore sand transport is developed by approximating existing formulas for onshore bed load and offshore suspended sand transport in the inner surf zone. The model predicts the horizontal shift of the equilibrium profile under net cross-shore sand transport, which is the maximum at the shoreline and approaches zero at the closure depth. The model calibrated using the three tests are used to estimate the seaward shift of the shoreline on periodically-nourished beaches of prototype scale. The estimated shift is of the order of 1 m or less but will need to be verified using field data.
590 $a School code: 0060.
650 4 $a Ocean engineering. $3 660731
690 $a 0547
710 2 $a University of Delaware. $b Department of Civil and Environmental Engineering. $3 1021002
773 0 $t Masters Abstracts International $g 58-01(E).
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791 $a M.C.E.
792 $a 2018
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10810992