Hydrodynamic Pipeline Orcawave To Orcaflex Direct Integration

OrcaWave to OrcaFlex (Direct Integration) (+3)

OrcaWave to OrcaFlex (Direct Integration)

import OrcFxAPI

def create_orcaflex_vessel_from_orcawave(owr_path, ofx_model_path):
    """Create OrcaFlex vessel type from OrcaWave results."""
    # OrcaFlex can directly import OrcaWave .owr files
    model = OrcFxAPI.Model()

    # Create vessel type
    vt = model.CreateObject(OrcFxAPI.ObjectType.VesselType)
    vt.Name = "FPSO_VesselType"

    # Import hydrodynamic data from OrcaWave
    vt.WavesReferredToBy = "frequency (rad/s)"
    vt.PrimaryMotion = "Displacement RAOs"

    # Load OrcaWave database
    vt.LoadHydrodynamicData(owr_path)

    # Create vessel instance
    vessel = model.CreateObject(OrcFxAPI.ObjectType.Vessel)
    vessel.Name = "FPSO"
    vessel.VesselType = vt.Name
    vessel.InitialX = 0
    vessel.InitialY = 0
    vessel.InitialZ = 0
    vessel.InitialHeading = 0

    model.SaveData(ofx_model_path)
    return model

AQWA to OrcaFlex (via BEMRosetta or Manual)

def aqwa_to_orcaflex(aqwa_lis_path, orcaflex_model):
    """Import AQWA results into OrcaFlex vessel type.

    Method 1: Use BEMRosetta to convert AQWA format to OrcaFlex-compatible
    Method 2: Parse AQWA .lis file directly and set vessel properties
    """
    # BEMRosetta conversion (preferred)
    import subprocess
    subprocess.run([
        'BEMRosetta', '-i', aqwa_lis_path,
        '-o', 'converted.owd', '-format', 'orcawave'
    ])

    # Then load into OrcaFlex
    vt = orcaflex_model.CreateObject(OrcFxAPI.ObjectType.VesselType)
    vt.LoadHydrodynamicData('converted.owd')

Data Format Mapping

Coordinate System Warnings

Critical: Always verify heading convention. A 180-degree error inverts all RAO phases.