Ansys-AQWA-v5.7c

AQWA - An Integrated System

AQWA is a fully integrated system consisting of modules for diffraction/radiation (AQWA-LINE), static and dynamic initial stability including mooring lines (AQWA-LIBRIUM), frequency domain with irregular waves (AQWA-FER), time domain with irregular waves including slow drift (AQWA-DRIFT) and non-linear time domain with regular or irregular waves (AQWA-NAUT)

These modules are encapsulated in the powerful AQWA-Graphical Supervisor
In addition an optional integrated module for coupled Cable Dynamics is available with frequency and time domain modules as well as stands alone within the AQWA-Graphical Supervisor.

Other optional Modules include AQWA-LAUNCH and AQWA-FLOAT. These perform the simulation of jacket launch and float operations during installation. The AQWA Graphical Supervisor can present results from the programs and perform animations.

Hydrodynamic Interaction between floating bodies

AQWA can take account of hydrodynamic interaction between adjacent structures. Thus the motions of one structure can affect the motions of another. The structures can be articulated, connected by cables or independent. A typical application would be shielding effects. Note that hydrodynamic interaction with forward speed is currently not available.
The colored lines between these two vessels will help to tell the user what percentage they have moved during an analysis. Brown is under 30% and yellow between 50% and 30%.

Multiple Body Articulations

AQWA has the ability to handle articulated structures. Up to 10 of these structures can be diffracting/radiating structures. Up to a further 40 can be mechanical structures such as cranes and other rigid connects etc. This permits the modeling of combined hydrodynamic and mechanical dynamic configurations. Articulations can have friction and damping included. If the mechanical connections are represented as tubes these are allowed to become wholly or partially submerged and Morison types forces calculated.
Total Capability for all Hydrodynamic Applications


AQWA is not just for moorings or diffraction radiation but is a general purpose hydrodynamics analysis suite providing enormous flexibility to address most types of problem. Examples of its use include:

Design and analysis of mooring systems
Motions analysis of FPSOs
Determination of Air Gaps
Calculation of Shielding Effects of ships and barriers
Multiple Body Interactions during LNG transfer
Coupled mooring line-structure interaction
Cable Dynamics with intermediate buoys
Splitting Force calculations for Semi-Submersibles
TLP concept design
TLP tether analysis
Dropped object trajectory calculations
Concept design and analysis of Wave Energy systems
Simulation of lifting operations between floating vessels
Discharging landing craft from mother ships
Transportation of large offshore structures using barges/ships
Float over analyses
Motions analysis of Spar vessels