It includes capabilities for riser analysi s, J-tube pull simulations, bottom bending calculations, and floating structure studies. In addition, rigid elements may be subjected to buoyancy loading. Wave loading via Stokes 5th order theory or Airy wave theory is also available.
Wind loading is available for structures that rise above the free surface of the water.
Hybrid formulation elements are used to avoid numerical difficulties with slender pipelines. A complete set of plotting options, print controls, and versatile restart features are included as well as extensive postprocessing capabilities. The total drag force is divided into tangential, transverse, inertia and lift contributions. The tangential and transverse components are related to the square of the relative velocity between the fluid and the structure. Extensions to the Morison drag equation allow the user to isolate the part of the drag loading due to steady current and that due to waves, and to apply these loads independently in a single analysis.