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Offshore Sea Facility
Parent Body: HR Wallingford Ltd., Howberry Park,
Wallingford, OX10 8BA
Provision of a scale model offshore environment for the testing of fixed and floating offshore and port related structures.
General Details
The Offshore Sea Facility is used for generating a
scale model offshore environment consisting of wind and waves in which models of
offshore and port structures are tested. Motions and forces on the models are measured in order to
assess the performance of the structure in either installation, operational or survival
conditions. Any type of wave condition can be generated, be they regular, random, long or
short crested. The method of wave generation used results in spectra that are continuous
in the frequency domain and short crested seas being homogenous over a large percentage of
the basin area.
Specification
The basin is 25m × 25m × 2m deep. A central 4m × 4m
× 4m pit allows local depth up to 6m. Waves are generated using 80 computer controlled
paddles using the principle of filtering white noise generated by a binary shift register
in real time, allowing extreme flexibility in the choice of wave conditions and length of
experiment. A maximum significant wave height of 0.24m with a maximum of 0.5m can be
generated for both long and short crested series. Wind forces are simulated using banks of
fans.
Special Features
There is a powerful data logging and analysis system on
the wave basin that can collect up to 72 channels of data at up to 50Hz, and provide
complex statistical data analysis on a turn around basis. Instrumentation is provided
using commercially available or purpose built transducers as required. Above and
underwater video is available.
Availability
The facility is available to other bodies in both the
private and public sector. There are no restrictions on the type of body that can apply to
use the facility. The advance notice required is dependent on the workload. Time on the
facility is allocated on a commercial basis.
Charging Basis
Charging rates are subject to negotiation.
Contact Information
Dr M W McBride
HR Wallingford Ltd.
Howberry Park
Wallingford OX10 8BA
Telephone: +44 (0) 1491 835381 Fax: +44 (0) 1491 832233
E-mail: m.mcbride@hrwallingford.co.uk
Web site: http://www.hrwallingford.co.uk
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