Examples of end-of-study projects in Naval and Offshore Architecture

At the end of their third and final year, naval & offshore architecture students have an end-of-study project to complete. This professional experience gives them the opportunity of putting what they know into practice and of demonstrating their ability in terms of carrying out a complete assignment, from start to finish.

To get a clearer idea of what an end of-study project in Naval & Offshore Architecture entails, here is an example of a thesis:

 

Examples of end-of-study projects
Effect of wave directionality on the motion response of vessels moored in a nearshore environment

End of studies internship done at MARIN research center, by Paul B,, general engineer training, class of 2021

Extract :

"Liquid Natural Gas (LNG) terminals are built to offer easy access from deep water to incoming Liquid Natural Gas Carrier (LNGC). Yet, these configurations expose LNGC moored to the jetty to infragravity waves in tune with their natural frequency, leading to great amplitude motions that can endangered installations safety"

S-lay parametric studies

End of studies internship done at Subsea7, by Pedro Luiz DAF., general engineer training, class of 2018

Extract :

"The S-lay installation method has been used successfully for decades in shallow water and is used more and more for deep-water projects. With its high level of productivity, this method is preferred to J-lay installation method .Nevertheless, with the increasing number of field development in deep and ultra-deep water (<1500m), limits regarding pipeline integrity (bending moment in sagbend) and vessel equipment’s (especially capacity of tensioner i.e. maximum allowable top tension) are achieved quickly. In order to install pipe with S-lay method as deep as possible, the degree of conservatism (inherited mainly from common practice in offshore industry which are based on shallow water projects) in installation analyses should be decreased. Therefore, several parameters (that can have an impact on top tension and bending moment) have been studied: Drag Coefficient, Added Mass Coefficient, soil Stiffness, Seabed Friction Coefficient and length of pipeline on the seabed"

Optimisation tool for the preliminary design of a wind turbine floater

End of studies internship done at Saipem, by Cyril C., general engineer training, class of 2021

  • Full Master Thesis is not available
Automatic refinement and form optimization

End of studies internship done at LHEEA, by Charles-Edouard J., general engineer training, class of 2018

Extract :

"The project conducted by LHEEA and CNR-INM focuses on the optimization of hull forms by minimizing the hydrodynamic drag. The optimizer (AMFM) and the modeler (KLE) were both developed by CNR-INM while the solver code used is ISIS-CFD. One aspect of the project is to minimize the calculation cost using automatic mesh refinement in order to limit the cell density in non relevant areas of the domain. The purpose of this work is to perfom a complete optimization chain to minimize the hydrodynamic drag for the DTMB5415."

Analysis of independent tank supports for gas carriers

End of studies internship done at Bureau Veritas Marine&Offshore, by Julieta  Logarzo., general engineer training, class of 2018

Extract :

“Offshore units designed to stock gas, as gas carriers and FSRU, are submitted to extreme environmental conditions that cause efforts in the structure. In particular, units composed of independent tanks from the hull are submitted to efforts induced by friction in tanks supports. The present study is focused on the analysis of nonlinearities carried out by contact interaction between hull and tank.”

Adaptive Grid Refinement Procedure for RANS-based Seakeeping Computations

End of studies internship done at LHEEA laboratory at Centrale Nantes, by Matthieu Abgrall, general engineer training, class of 2024

Extract :

“This study investigates the use of adaptive grid reőnement for RANS-based seakeeping computations. It addresses the primary challenge of deőning an effective and reliable reőnement criterion and procedure for modeling a wide range of regular waves without iterative parameter adjustments.”

Examples of projects in Hydrography-Oceanography

Students at ENSTA Bretagne complete their course with an end-of-study project. They spend several months working on an engineering assignment under the supervision of their internship tutor. At the end of this assignment, they produce a written thesis which they present before a panel made up of faculty staff and examiners with industrial and scientific backgrounds.

This page presents examples of end-of-study internships completed in the sphere of Hydrography and Oceanography.

Examples of end-of-study projects
Estimation des flux d'O² et de CO² à l'interface air-eau, en milieu contrôlé

Stage de fin d’études réalisé à l'institut méditerranéen d'Océanologie par Domitille C., Formation d’ingénieur spécialité hydrographie océanographie, Promotion 2024

Extrait : 
"Les flux de gaz sont primordiaux à estimer pour pouvoir étudier différents phénomènes et processus climatiques. L’objectif de ce stage est de diminuer l’incertitude des mesures des optodes à oxygène de chez Aanderaa® utilisées dans le programme BCG-Argo, afin d’estimer les flux de pCO2 , de pO2 et de chaleur en soufflerie LASIF, un milieu contrôlé permettant de reproduire des expériences."

Elaboration d'un protocole d'analyse des données issues d'un profileur acoustique larges bandes visant à la classification des organismes micronectoniques migrants

Stage de fin d’études réalisé au laboratoire IRD par Arnaud C., Formation d’ingénieur spécialité hydrographie océanographie, Promotion 2024

Extrait : 
"Mon projet de fin d’études s’inscrit dans le cadre du projet ANR APERO et de sa campagne éponyme mise en place pour « Estimer la production, l’export et la reminéralisation de la matière biogène marine : de la surface à l’océan profond ». Son but est d’étudier l’océan et sa capacité à être une pompe biologique de carbone. Lors de cette campagne des sondeurs acoustiques monofaisceau appelés "profileurs acoustiques" ont été déployés au sein de la colonne d’eau. Les transducteurs utilisés sont larges bandes. C’est-à-dire qu’ils récoltent des informations sur une gamme de fréquences et non une fréquence ponctuelle. Ces acquisitions innovantes permettent d’observer individuellement les organismes évoluant sous la surface et de les associer à une signature fréquentielle.(...) L’objectif est de travailler sur un protocole de traitement des données acoustiques de la campagne APERO. Pour cela, il sera nécessaire de prendre en compte l’ensemble des subtilités apportées par l’usage des profileurs acoustiques larges bandes."

The occurrences and drivers of the observed small-scale surface variations in the Southern Ocean

End of studies internship done at LOPS, by Agathe C., general engineer training, class of 2021

Extract: 
"This region is a transition zone between cold/fresh polar water near Antarctic coast and saline/warm subtropical water north of the ACC which is structured
in multiple thermohaline quasi-zonal fronts, varying in location, duration and size. Using 27 years of thermosalinograph measurements along a route between Hobart in Tasmania
and the french base Dumont d’Urville, this report aim is to document (sub)mesoscale thermohaline structure and associated processes at the ocean surface in the Marginal Ice
Zone, south of 60°S."

 

Development of a new method to detect tropical cyclones centers

End of studies internship done at IUEM, byFlora G., general engineer training, class of 2021

Extract:
"Predicting the intensity and track of tropical cyclones (TC) is nowadays very important to reduce the damage caused by these extreme events. The crucial parameters for improving TC forecasts depend on the position of the tropical cyclone center. Synthetic Aperture Radar (SAR) images provide new observations and estimates of TC-generated winds speed and direction. In this report, a new method will be implemented to calculate the position of TC centers from SARderived wind directions."

Sonar internal waves

End of studies internship done at Stockholms universitet, by Gaspard G., general engineer training, class of 2019

Extract:
“The purpose of this study is to observe internal tides in the ocean by using sonar technology. While the dynamics of internal waves mainly take place in the ocean interior, they also have a small surface expression. We have used the High Resolution Empirical Tide Model, based on satellite altimetry, to compute this surface expression for theM2semi-diurnal tide globally. Based on vertical mode decomposition, we have then estimated the correspondingmode-1 interior isopycnal displacement. On the basis of this knowledge, we explored two acoustic datasets.”

Internal tides characterization on the Abrolhos Bank and the Victoria-Trindade ridge in the context of the SWOT Brazil project

End of studies internship done at LEGOS, CLS, Mercator Ocean International, by Perrine B., general engineer training, class of 2019

Extract:
"In the ocean, internal tides generation occurs when barotropic flows interact with strong topographic gradient, like ridges, in a stratified ocean, which create isopycnal heaving at tidal frequency. Internal tides can dissipate locally or after thousands of kilometres of propagation, whereas their dissipation produces vertical mixing at centimetric to millimetric scales. Their centimetric signature in sea surface height is measured by altimetry. How to separate these scales from (sub)mesoscale circulation is a challenge for both ocean models and for the future SWOT mission, which will provide altimetry data at resolutions never reached before on a large swath. This work contributes to better understand internal tides properties and their interaction with small scale circulation by using already existing altimetry data and a 1/36° resolution NEMO regional simulation to study the Vitoria-Trindade ridge in the South Atlantic, which has been identified as hotspot for internal tides generation."

Processing of AUV data and extraction of backscatter

End of studies internship done at CSIC, by Morgan P., general engineer training, class of 2019

Extract:
« During the INSIGHT-Leg 1 cruise in which I participated, high-resolution bathymetric data at depths up to 5000m were obtained through the use of an AUV, as well as geological and geophysical data obtained from R / V "Sarmiento de Gamboa". The rest of the internship was dedicated to the processing of the data acquired by the AUV ».

Study of the motion of the Argentière glacier by GNSS data

End of studies internship done at ISTerre, by Auriane H., general engineer training, class of 2019

Extract:
" Since 2007, GPS stations record the movements of the Argentière glacier. GPS data processing, which was first based on a static positioning (positions averaged every 6h), is now based on a kinematic positioning (positions computed from the simultaneous record that is made of visible satellites every 30s). Kinematic positioning has a better temporal resolution than the static one.During this internship, GNSS data have been processed via the software TRACK, and Python scripts have been developed to compute vertical displacements and horizontal speeds. Resulting time series have been compared to various observations in order to better understand the glacier’s movements"