Imperial College London
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DrLiMa

Faculty of Engineering, Department of Civil and Environmental Engineering

Lecturer in Fluid-Structure Interaction
 
 
 
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Contact

 

+44 (0)20 7594 1813l.ma

 
 
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Assistant

 

Miss Rebecca Naessens +44 (0)20 7594 5990

 
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Location

 

327Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Ma:2020:10.1016/j.jfluidstructs.2020.102987,
author = {Ma, L and Swan, C},
doi = {10.1016/j.jfluidstructs.2020.102987},
journal = {Journal of Fluids and Structures},
title = {The effective prediction of wave-in-deck loads},
url = {http://dx.doi.org/10.1016/j.jfluidstructs.2020.102987},
volume = {95},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The present paper concerns the extreme wave loads acting on an offshore structure; specifically the wave-in-deck loading component that arises when the height of an incident wave crest exceeds the elevation of the topside structure. In this case wave inundation occurs, the resulting loads on the topside structure represent a significant part of the total wave load. A new model for the effective prediction of this important loading component is presented. This is based upon the conservation of momentum, is formulated in a Lagrangian frame of reference, can incorporate any incident wave form, and takes due account of the porosity (or openness) of the topside structure. Comparisons between the model predictions and wide-ranging laboratory observations are shown to be in good agreement; the latter based upon deterministic focused wave events that are known to be representative of the largest waves arising in realistic sea-states. In addition, comparisons are also made with independent cfd calculations. Taken together, the proposed model is shown to accommodate changes in the spectral shape, the spectral peak period, the incident crest elevation (and hence the level of inundation), the directional spread of the incident waves, and the porosity of the topside structure. Importantly, this agreement applies to both non-breaking and breaking waves, involves no empirical calibration, and can be achieved with limited computational resources. As such, the model is ideally suited to design/re-assessment calculations in which the reliability of any offshore structure must be based upon a rigorous assessment of the long-term distribution of the total wave loads, including any wave-in-deck loading component.
AU  - Ma,L
AU  - Swan,C
DO  - 10.1016/j.jfluidstructs.2020.102987
PY  - 2020///
SN  - 0889-9746
TI  - The effective prediction of wave-in-deck loads
T2  - Journal of Fluids and Structures
UR  - http://dx.doi.org/10.1016/j.jfluidstructs.2020.102987
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000531867400010&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://www.sciencedirect.com/science/article/pii/S0889974619307212?via%3Dihub
UR  - http://hdl.handle.net/10044/1/81079
VL  - 95
ER  -
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