Automatic Creation of Internal Lid Elements. Internal lid elements are automatically generated for the analysis by default. This is controlled by the Generate Internal Lid option.

Display of Disc Normal Vector. When a Disc element is defined, the unit normal vector is shown in the Details panel.

Drum Winch for Nonlinear Polynomial Cables. You can define a Cable Winch on a nonlinear polynomial cable.

Dynamic Control Object. You can use the new Dynamic Control object to control the motion of a structure, allowing it to move along a specified course or toward a given position or heading.

Failure Time of Intermediate Buoy or Clump Weight. In the Connection Failure object, you can set the Failure Time of an intermediate buoy or clump weight in a Time Domain Hydrodynamic Response analysis by selecting the required Catenary Joint for the Failing Connection property.

Froude Number Warning for Forward Speed. When a Forward Speed is defined in the Hydrodynamic Diffraction analysis, a warning message occurs when the estimated Froude number exceeds 0.3.

Increased Limit for Number of Elements. The 64-bit version of Aqwa can now accept up to 60,000 elements, of which 30,000 can be diffracting.

Maneuvering Force/Moment for Time Domain Hydrodynamic Response Including Drift. You can now use the Include Maneuvering Force analysis setting for all time response analysis types to request calculation of low frequency maneuvering loads. See the MNVR solver input.

Multiple MCOL File Generation. The MCOL Hydrodynamic Database analysis setting allows you to generate multiple hydrodynamic databases based on varying structure positions and orientations by using the template run script file, WorkbenchScript.py, included in the standard Windows installation of Aqwa.

Parametric studies with pressure mapping. Ansys optiSLang provides a powerful simulation workflow environment for parameter sensitivity analysis, optimization, and robustness evaluation. For parametric studies involving pressure mapping from a Hydrodynamic system to a Static Structural analysis, optiSLang can perform some additional background steps that are required in the design point update process. optiSLang also delivers more detailed post-processing in parametric response and sensitivity.

Pretension Value Definition for Fenders and Cables. A pretension value can be defined for fenders and all cable types. When the cable pretension value is set directly, the related Unstreched Length or Length value automatically updates. The cable pretension property is Initial Tension for Linear Elastic, Nonlinear Polynomial, and Nonlinear Steel Wire cables, and Cable Pretension for Nonlinear Catenary cables. For fenders, an Initial Elastic Force can be defined. Similarly, if this value is set directly, the fender Size value automatically updates.

Structure Center of Gravity for Starting Conditions. The Hydrodynamic Response Starting Conditions object now allows the Reference Point to be set to Structure Center of Gravity.

Upgrade to OpenFAST 4.0.0. The version of AeroDyn and InflowWind included in the Ansys installation has been upgraded from OpenFAST version 3.0.0 to 4.0.0. For more information, refer to OpenFAST User Documentation, OpenFAST release notes and API changes between versions. It is important to consider the configuration differences when preparing AeroDyn input files and InflowWind input files for 4.0.0.

Watch Zone Improvement. The Aqwa editor, where the defined Watch Zones are rendered, and the window that displays the Binding Selection and Statistic Results are now synchronized.