Subsea Cable Analyst – Internship H/F

Project details

Offshore wind farm, Offshore power cable, Cable Protection Systems (CPS)

Role Definition

Aventa is currently looking to hire an intern in last year of engineering school to join their Engineering Team in Anglet (France). The successful candidate will work on multiple projects in the Offshore Energy Sector. It is not requested any previous experience in the sector as internal training will be provided. However academic hydrodynamics knowledge is mandatory and first experience with Orcaflex in academic session of school projects is a plus.

The internship will be divided into two phases:

1. Theory and development:

o Numerical modelling of CPS/cable systems in interaction with the seabed and with stabilization methods (like rock bag, mass stabilization etc…).

o Hydrodynamic coefficients for low and high fluid flow velocities in steady flow or in wave environment.

2. Involvement in real AVENTA’s project

Theory and development

Numerical modelling of CPS/cable systems in interaction with the seabed and with stabilization methods (like rock bag, mass stabilization etc…)

Objective: Propose a methodology to model accurately the interface of CPS/cable boundary conditions. As an example, a boundary condition could be: few meters of the CPS being fixed with a rock bag laid on top of it.

For this phase of the internship, the student will first need to familiarize with AVENTA activities. After this introduction the student will be trained and should self-train to Orcaflex software with AVENTA classic numerical models.

Once Orcaflex basics are mastered, the student will work a real AVENTA’s project problematic: modelling of CPS and/or cable boundary conditions.

Hydrodynamic coefficients for low and high fluid flow velocities

Objective: Gather and understand standards like DNV mentioning hydrodynamic coefficients. The aim is to settle a clear methodology and provide tools to AVENTA project engineers to set up hydrodynamic coefficient in their numerical models. This methodology and tools must consider the dependency of hydrodynamic coefficients with regards to the Re, Kc numbers and roughness of the CPS/Cable.

For this other part of the internship (could be tackled in parallel with the other topic) student will need first to familiarize with hydrodynamic coefficient theory and should be able to present to his/her colleagues a clear synthesis. After this introduction the student should develop the methodology and the tools to set up those hydrodynamic coefficients into real project numerical models.

Qualification

Involvement into real AVENTA’s project

If the student has demonstrated a good understanding during the first phase of the internship, she/he will be involved into real challenging AVENTA’s project supporting project engineers. The main activities will be as described in the list below but not restricted to:

• Create numerical models for the project and ensure numerical results are consistent with the physics.
• Create technical report.
• Presents her/his results to the team and to the clients.

The student will of course be supervised by the engineers in the office and by her/his internship supervisor.

Opportunities

If student demonstrates a good involvement during the internship a job opportunity could be proposed.