Hydrodynamics CFD simulation, Coupled with FEA for FSI Analysis of Marine and offshore structures

FEA & CFD Based Simulation Design Analysis Virtual prototyping MultiObjective Optimization

Hydrodynamics is a common application of CFD and a main core of Enteknograte expertise. CFD allows the steady-state and transient hydrodynamics of hydrofoils, submersible vehicles, propellers, impellers, marine structures and marine plant to be computed with extremely high levels of accuracy.  System properties such as mass flow rates and pressure drops and fluid dynamic forces such as lift, drag and pitching moment can be readily calculated in addition to the wake effects. This data can be used directly for design purposes or as in input to a detailed stress analysis.

Marine ship CFD Msc Cradle Ansys Fluent Siemens Star-ccm+

Real-World Simulation with Coupled using of CFD & FEA

Using cutting edge solver technology, Enteknograte’s customers have been able to tackle some of the most demanding problems that the marine industry has to offer, allowing us to predict how designs will react in operation, before budget is committed to the construction of expensive prototypes. Enteknograte’s Engineering team provides analyses ranging from: ship keeping, slamming and sloshing; wave and wind loading on offshore and underwater structures; oil and pollutant dispersions to cavitation control and propulsion system optimization.

Deep knowledge and experience combining with advanced CFD and FEA software enable us to handle any problem with any level of complexity in very short time. We Use CFD tools such as MSC Cradle, Ansys Fluent, Siemens Star-ccm+ and FEA Tools such as Abaqus, Nastran and LS-DYNA with combination of very experienced engineers to help our customers in:

  • Investigation of course keeping and turning ability
  • Motions analysis of FPSOs (Floating production storage and offloading)
  • Manoeuvring at low / variable speed in shallow and confined seaways/ unsteady maneuvers: tacking, gibing
  • Torsional Vibration Simulation with Coupled CFD and FEA softwares to identify the interaction between components, an essential part of the system and functionality assessment
  • (unlimited) deep water-Shallow water condition
  •  Floating wind turbine design and simulation including dynamic effects due to elastic response of wind, waves in rotor blades, the tower, and the mooring lines.
  • Monohulls / conventional ships
  • Multi hulls: catamarans, SWATH, trimarans
  • Asymmetric ships (monohulls as well as catamarans)
  • Submarines
  • FEA simulation of torsional vibration regarding ice impacting on the propeller
  • Fixed models as well as free to trim and sink conditions
  • Coupled Hydrodynamic CFD Simulation with structural finite element analysis to Simulate transient strcutural behavior in irregular waves
  • Added resistance in waves
  • Combined drift and gyration
  • Ship resistance analysis
  • Hydrodynamic Interaction between Bodies: shielding effects, Forward speed effects
  • Dynamic trim and sinkage behaviour
  • Propulsion and propeller performance optimization
  • Ship wake
  • Shaft fatigue and lifecycle calculations of marine shafts torsional vibration stress levels based on low cycle, high cycle and transient fatigue
  • Vortex induced vibration analysis
  • Whipping and slamming impacts simulation: Wave-induced hull vibration for the assessment of hull girder collapse characteristics.
  • Erosion CFD Simulation including hydrodynamics effects
  • Offshore equipment stability: Buoyancy and centre of gravity studies
  • Added masses for subsea hardware CFD calculations
  • Hull performance assessment and wave-making CFD solutions
  • Sea keeping behavior in regular or irregular waves
  • Calculation of drag and lift on appendages
  • Sail or wing optimization
  • Ship structural analysis and design with FEA software such as Ansys, Abaqus and Nastran
  • Hydrodynamic plant & equipment
  • Tidal Power System Hydrodynamic Design
  • Optimal gearbox lubrication


We pride ourselves on empowering each client to overcome the challenges of their most demanding projects.

Enteknograte offers a Virtual Engineering approach with FEA tools such as MSC Softwrae(Simufact, Digimat, Nastran, MSC APEX, Actran Acoustic solver), ABAQUS, Ansys, and LS-Dyna, and CFD codes such as MSC Cradle, Ansys Fluent, Siemens StarCCM+ , special purpose software such as Maxsurf and “AVEVA Marine” in Boat, Yacht, Marine and Shipbuilding Industry, encompassing the accurate prediction of in-service loads, the performance evaluation, and the integrity assessment including the influence of manufacturing the components.