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Separation of structure and ripples on sand mounds using Hermite functions

Abstract:
A simple method is proposed for the separation of a large-scale structure from small-scale ripples during the evolution of an isolated sand hill or spoil heap eroded by an oscillatory or steady flow by bed-load transport. This method is based on Hermite functions, a mother Gaussian hill and derivatives modified to be orthogonal. It is straightforward to apply and could be used to characterise the geometric properties of any isolated localised hill-like feature such as pollution concentration levels away from an outfall.

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Publisher copy:
10.1680/eacm.2012.165.1.15

Authors


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Institution:
University of Oxford
Department:
Oxford, MPLS, Engineering Science, Civil Engineering
García-Hermosa, MI More by this author
Stansby, PK More by this author
Borthwick, AGL More by this author
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Journal:
Proceedings of the Institution of Civil Engineers: Engineering and Computational Mechanics
Volume:
165
Issue:
1
Pages:
15-24
Publication date:
2012
DOI:
EISSN:
1755-0785
ISSN:
1755-0777
URN:
uuid:d1d9df80-f626-429b-b937-1412cea55765
Source identifiers:
415701
Local pid:
pubs:415701

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