JIP HAWAII

Period:	2010-2012
Client:	Joint Industry Program

sHAllow WAter II

Objectives:

To develop a consistent design methodology for offshore terminals in a nearshore wave climate and intermediate water depths (15-40 m).

Background:

HawaII is the follow-up of the HAWAI JIP in which the objective was “to improve the reliability of offshore (LNG) terminals in shallow water by using the combined expertise of offshore hydrodynamics and coastal engineering”. The HAWAI JIP was initiated in 2005 after a series of basin experiments at MARIN in shallow water for which the results could not be explained satisfactorily. The parties involved realized that the complexity of the shallow-water wave conditions in the basin would similarly apply to the real world.

This indicated a lack of knowledge on terminal design in shallow water, related scale-model tests and numerical simulation techniques. The first HAWAI JIP greatly improved insight in the behavior of (low-frequency) shallow-water waves and their interaction with offshore terminals, in scale models as well as in the field.

The knowledge gained in the first HAWAI JIP is now applied to develop a consistent and practical design methodology for offshore terminals. The scope of work comprises the following Work Packages (WP):

WP 1: Wave Models

WP 2: Response Models

WP 3: Model Tests (postponed)

WP 4: Methodology Development and Case Study

Status:                            Started Nov 2009

Application of results: Offshore (LNG) terminals in intermediate water depths (15-40 m)

Knowledge area:          Shallow water, Infragravity waves, setdown, moored ships

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