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Hydraulic Model Testing Techniques
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Hydraulic Model Testing Techniques

A special issue of Journal of Marine Science and Engineering (ISSN 2077-1312). This special issue belongs to the section "Physical Oceanography".

Deadline for manuscript submissions: closed (31 May 2021) | Viewed by 10882

Special Issue Editor

Prof. Dr. Thomas Lykke Andersen

E-Mail Website
Guest Editor
Department of Civil Engineering, Aalborg University, 9220 Aalborg, Denmark
Interests: coastal engineering; ocean engineering; physical modelling; wave generation; wave analysis

Special Issue Information

Dear Colleagues,

This Special Issue is focused on hydraulic model testing techniques. Hydraulic model testing has been used for decades for the study of advanced and complex problems. Even after highly sophisticated numerical models, they are still highly relevant and used in many cases. This involves both commercial projects and research. In many cases, such model tests require innovative instrumentation or the use of advanced methods. This Special Issue is an excellent opportunity to share your expertise in this field with other hydraulic modelers.

Examples of topics of interest:

  • Developments of new methods for hydraulic model testing;
  • Application of innovative or advanced techniques for hydraulic model testing;
  • Application of existing methods in new areas or new ways;
  • Studies on the applicability of existing methods within hydraulic modelling;
  • Other areas that are of broad interest to hydraulic modelers.

Dr. Thomas Lykke Andersen
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Journal of Marine Science and Engineering is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • hydraulic models
  • wave generation
  • wave analysis
  • model scale laws
  • advanced measurement techniques

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Further information on MDPI's Special Issue polices can be found here.

Published Papers (3 papers)

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Research

17 pages, 18507 KiB  
Article
Experimental Investigation of Horizontal Wave Pressure on the Caisson Protected by Armor Blocks on the Rubble-Mounted Core
by Sang-Ho Oh and Jae-Sung Lee
J. Mar. Sci. Eng. 2020, 8(9), 691; https://doi.org/10.3390/jmse8090691 - 7 Sep 2020
Cited by 2 | Viewed by 2004
Abstract
The horizontal wave pressure on the front wall of the caisson protected by armor blocks on the rubble-mounted core is investigated by carrying out physical experiments. There have been few previous studies regarding this type of structure, and the characteristics of horizontal wave [...] Read more.
The horizontal wave pressure on the front wall of the caisson protected by armor blocks on the rubble-mounted core is investigated by carrying out physical experiments. There have been few previous studies regarding this type of structure, and the characteristics of horizontal wave pressure on the structure are still unclear. Considering this, a series of experiments were performed by changing the configuration of the coverage rate in front of the caisson and the shoulder width of the armor blocks. For each of the different configurations of the model setup, wave pressure on the caisson was measured under 20 regular waves of different wave periods and heights. By analyzing the obtained experimental data, it was possible to quantify the effects of the coverage rate and the shoulder width on the wave pressure. The wave pressure tended to increase up to maximally 1.5 to 2 times at the exposed part of the caisson if it was incompletely protected. In addition, the wave pressure at the top part of the caisson was substantially reduced with the increase of the shoulder width of the armor layer. Based on these results, adjustment factors for evaluating such effects have been suggested, which can be applicable for the practical design of the caisson covered with armor blocks on the rubble-mounted core. Full article
(This article belongs to the Special Issue Hydraulic Model Testing Techniques)
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19 pages, 6428 KiB  
Article
Investigating the Erosion Resistance of Different Vegetated Surfaces for Ecological Enhancement of Sea Dikes
by Babette Scheres and Holger Schüttrumpf
J. Mar. Sci. Eng. 2020, 8(7), 519; https://doi.org/10.3390/jmse8070519 - 15 Jul 2020
Cited by 15 | Viewed by 3367
Abstract
Dense grass covers are generally recommended for surface protection of sea dikes against mild and moderate hydraulic loads. The standard seeding mixtures were composed to meet the technical requirements and ensure dike safety. These mixtures are, however, limited in their species diversity. In [...] Read more.
Dense grass covers are generally recommended for surface protection of sea dikes against mild and moderate hydraulic loads. The standard seeding mixtures were composed to meet the technical requirements and ensure dike safety. These mixtures are, however, limited in their species diversity. In the present study, four differently vegetated surfaces were tested regarding their erosion resistance against wave impacts and overflow. The test vegetations ranged from a species-poor grass-dominated reference mixture to species-rich herb-dominated mixtures. Two vegetations were reinforced with a three-dimensional geogrid. For the unreinforced vegetations, the erosion rate due to wave impacts decreased exponentially with increasing root density and root length density. The geogrid reinforcements functioned as additional protection when the upper vegetation layer was eroded and led to slightly decreasing erosion rate with depth. In overflow simulations, the relatively densely-vegetated grass-dominated mixture experienced least erosion. Erosion was mainly initiated at bare spots emphasizing the major role of a closed vegetation cover and dike maintenance. The present results give new insights into erosion patterns of unreinforced and reinforced vegetated dike covers and the relation between vegetation parameters and hydraulic resistance to wave impacts and overflow. Full article
(This article belongs to the Special Issue Hydraulic Model Testing Techniques)
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30 pages, 11452 KiB  
Article
Large Scale Experimental Study of the Scour Protection Damage Around a Monopile Foundation Under Combined Wave and Current Conditions
by Minghao Wu, Leen De Vos, Carlos Emilio Arboleda Chavez, Vasiliki Stratigaki, Tiago Fazeres-Ferradosa, Paulo Rosa-Santos, Francisco Taveira-Pinto and Peter Troch
J. Mar. Sci. Eng. 2020, 8(6), 417; https://doi.org/10.3390/jmse8060417 - 8 Jun 2020
Cited by 25 | Viewed by 4454
Abstract
This paper presents a series of large-scale wave flume experiments on the scour protection damage around a monopile under combined waves and current conditions with model scales of 1:16.67 and 1:8.33. The main objective is to compare the damage data obtained from these [...] Read more.
This paper presents a series of large-scale wave flume experiments on the scour protection damage around a monopile under combined waves and current conditions with model scales of 1:16.67 and 1:8.33. The main objective is to compare the damage data obtained from these large-scale models with existing monopile scour protection design approaches, which were proposed based on small scale wave flume experiments, and to study the applicability of the existing approaches. The static stability (onset of motion and bed shear stress) and the dynamic stability (three-dimensional damage numbers) of the scour protection are investigated. Both results show that the existing design approaches can be conservative when applied to large scale models, which highlights the need of further investigations on scale and model effects. In addition, this paper also analyses the scour protection damage depth. It is observed that damage depths of the scour protection layer under low Keulegan–Carpenter number (KC) conditions are smaller than predictions. The study provides valuable large scale experimental data for future research on the monopile scour protection design. Full article
(This article belongs to the Special Issue Hydraulic Model Testing Techniques)
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