Test Facilities
Deep Water Basin | Shallow Water Tank | Wave Flume | Instrumentation
Deep Water Basin (BGO FIRST)
Basin dimensions
Length40m
Width16m
Water depth0 to 4.8m
Central pit5m dia. @10m wd
Swell
Typeregular or irregular (all types of spectrum), mono or multi-directional
Max. height0.8m (peak to trough)
Periods0.5 to 4.0s
Current
Directioncollinear to swell or opposite
Max. speeddepending on the depth. Up to 1.2m/s @1m wd
Wind
Max. speed5 m/s
Direction0 to 360°
Towing Platform
Longitudinal speed1.2 m/s
Transversal speed1.2 m/s
Otherthe command of the 2 axes of the platform allows for any trajectory or harmonic motions
Other equipment
Equipment restricting basin section to increase the current velocity
Forced motions device to impose 6 degrees of freedom (hexapod)
Dynamic Positioning System
Features
- Compact configuration of the basin to run the tests with accuracy, speed and flexibility.
- Adjustable floor in depth (0-5 m) and angle (+/- 4 °)
- Simultaneous generation of wave, current and wind.
- Ability to perform tests in shallow or deep water.
- Modern computer and metrological equipment
- Expertise in experimental hydrodynamics in association with university researchers.
Applications
- Oil and gas marine engineering
- Marine engineering for the production of renewable energy
- Coastal engineering
- Naval Engineering (vessels at fixed point or operating at low speeds)
- R&D
Shallow Water Tank
Objectives
This tank is a shallow water basin designed mainly for physical model testing of coastal structures. These tests verify the stability of these structures in a given marine environment, and assess their performance in terms of protection, stability, overtopping, reflection, transmission or environmental impact in view of a possible optimization of the project.
Technical Characteristics
| Tank Dimensions | |
|---|---|
| Length | 27m |
| Witdh | 12m |
| Water Depth | 0 to 1m |
| Swell | |
| Type | regular or irregular (all types of spectrum), mono-directional |
| Max. Height | 0.5m (peak to trough) |
| Periods | 0.6 to 3s |
| Tank Floor | |
| Movable floor to model site bathymetry | |
Features
- Compact configuration for performing the tests with accuracy, speed and flexibility.
- Modern computer and metrological equipment.
- Expertise in experimental hydrodynamics in association with university researchers.
Applications
- Projects of industrial ports or marinas, waterfront development...
- Studies of protection against erosion or against marine submersion
Wave Flume
Objectives
The wave flume is a facility mainly designed for physical model testing of coastal structures. These tests verify the stability of one or more sections (2D) of these works in a particular marine environment, and evaluate them in terms of protection performance, stability, reflection or transmission in order to optimize the project. They are usually followed by a wave tank tests campaign for taking into account possible three dimensional effects (3D). They can also be used in other areas, such as developments in deepwater to perform preliminary inexpensive tests.
Technical Characteristics
| Dimensions | |
|---|---|
| Length | 24m |
| Width | 1m |
| Water Depth | 0 to 1.5m |
| Swell | |
| Type | regular or irregular (all types of spectrum), mono-directional |
| Max. height | 0.5m (peak to trough) |
| Periods | 0.6 to 3s |
| Floor | |
| Movable floor to model site bathymetry. | |
| Side Windows | |
| Type | rectangular (laminated glass) |
| Width | 1.20m |
| Height | 1.00m |
Features
- Compact configuration for performing the tests with accuracy, speed and flexibility.
- Modern computer and metrological equipment.
- Expertise in experimental hydrodynamics in association with university researchers.
Applications
- Projects of industrial ports and marinas, waterfront development...
- Studies of protection against erosion or against marine submersion
- And more generally all development project at sea (coastal development, offshore, renewable energy converter ...) requiring inexpensive preliminary tests
Instrumentation
| Acquisition System | |
|---|---|
| Number of measurement channels | 96 (extendable) |
| CAD | 16 bits |
| Sampling frequency | up to 100 kHz |
| 6 DOF motions real time contactless tracking | |
| Aerial systems (Krypton) | |
| Submarine system (Qualisys) | |
| 1 DOF motion measurement | |
| Inductive sensors | |
| LVDT | |
| wire type | |
| Multi-axis force measurement | |
| loads or moments 2 axes sensors | |
| force balances 3 or 6 axes | |
| 1 axis force measurement | |
| strain gauge sensors (bending, compression / tension) | |
| piezoelectric sensors (compression / tension) | |
| Pressure measurement | |
| strain gauge sensors for low frequency applications | |
| piezoelectric sensors for measuring high frequency phenomena | |
| Water elevation measurement | |
| wide range of resistive and capacitive wave gages | |
| Acceleration measurement (acceleration can also be derived from the motions with high accuracy) | |
| 1 DOF sensors | |
| 3 DOF sensors | |
| Current measurements | |
| propeller type | |
| electromagnetic type | |
| turbulence measurements by hot film or laser velocimetry (rent equipment) | |
| Wind measurements | |
| hot film anemometer | |
| Video recording | |
| aerial, underwater and fast (200Hz) cameras. | |
Specific instrumentation
When the standard instrumentation is not suitable, Oceanide can:
- Design, fabricate and qualify specific assemblies including several standard sensors to perform complex measurement
- Design and qualify new specific sensors and sub-contract their fabrication to one of the large number of Oceanide' suppliers