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CFD Fluid Structure Interaction (FSI)

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

Fluid Structure Interaction (FSI)

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Hydrodynamics CFD simulation, Coupled with FEA for FSI Analysis of Marine and offshore structures
CFD Fluid Structure Interaction (FSI)

Hydrodynamics is a common application of CFD and a main core of OLTRION 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 input to a detailed stress analysis.

Hydrodynamics simulation and optimization is one of OLTRION’s core expertise. Deep knowledge and experience combined 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 Numeca Fine/Marine, Ansys Fluent, Siemens Star-CCM+ and FEA tools such as Abaqus, Nastran and LS-DYNA together with very experienced engineers to help our customers in:

  • ▶ Ship resistance analysis
  • ▶ Hydrodynamic interaction between bodies: shielding effects, forward-speed effects
  • ▶ Dynamic trim and sinkage behavior
  • ▶ Propulsion and propeller performance optimization
  • ▶ Ship wake analysis
  • ▶ 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 and hull-girder collapse assessment
  • ▶ Erosion CFD simulation including hydrodynamics effects
  • ▶ Offshore equipment stability: buoyancy and center-of-gravity studies
  • ▶ Added masses for subsea hardware CFD calculations
  • ▶ Hull performance assessment and wave-making CFD solutions
  • ▶ Seakeeping behavior in regular or irregular waves
  • ▶ Calculation of drag and lift on appendages
  • ▶ Sail or wing optimization
  • ▶ Ship structural analysis and design with FEA tools such as Ansys, Abaqus and Nastran
  • ▶ Hydrodynamic plant & equipment
  • ▶ Tidal power system hydrodynamic design
  • ▶ Optimal gearbox lubrication
  • ▶ Investigation of course-keeping and turning ability
  • ▶ Motions analysis of FPSOs (Floating Production, Storage & Offloading units)
  • ▶ Manoeuvring at low / variable speed in shallow and confined seaways — unsteady maneuvers: tacking, gybing
  • ▶ Torsional vibration simulation with coupled CFD and FEA to identify interaction between components
  • ▶ (Unlimited) deep-water / shallow-water condition modeling
  • ▶ Floating wind-turbine design and simulation including dynamic elastic response of blades, tower and 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 impact on the propeller
  • ▶ Fixed models as well as free-to-trim and sink conditions
  • ▶ Coupled hydrodynamic CFD simulation with structural FEA to simulate transient structural behavior in irregular waves
  • ▶ Added resistance in waves
  • ▶ Combined drift and gyration
Talk to an engineer All of Fluid Structure Interaction (FSI)
The wider discipline

Fluid Structure Interaction (FSI)

Fluid Structure Interaction (FSI) calculations allow the mutual interaction between a flowing fluid and adjacent bodies to be calculated. This is necessary since all real structures are flexible, especially those that are large or subject to high fluid loads. The body forces generated by fluids flowing are highly sensitive to the shape and curvature of adjacent surfaces. By coupling a CFD solver and the FEA solver, the deformation of a body resulting from the fluid loads and the subsequent modification of the flow field due to the newly deformed geometry …
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Fluid Structure Interaction (FSI)
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Capabilities that sit beside this one

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FEA and CFD based Simulation and Design for Medical and Biomedical Applications FEA- and CFD-based simulation design and analysis is playing an increasingly significant role in the development of medical devices, saving development costs … Open capability Themal FSI Simulation Simulating the thermal performance of a product early in the design phase can save large amounts of time and money by getting … Open capability One-Way FSI: Coupling CFD and FEA for Fatigue Simulation Solving thermal problems with CHT limits the engineer to the physical models that are contained within the CFD solver. More complex problems, … Open capability Two-Way FSI: Two-way coupled CFD and structural (FEA)–Thermal simulation Applications such as leakage paths and thin film flows where thermal-stress induced structural deformation affects fluid flow present an even more difficult … Open capability FEA and CFD based Design and Optimization for Marine and Shipbuilding Industry From the design and manufacture of small recreational craft to large oil tankers, using FEA- and CFD-based simulation, OLTRION assists shipbuilders and … Open capability
Industry

Where this applies

Industry Marine & Shipbuilding Finite Element Analysis (FEA) and Computational Fluid Dynamics (CFD) are widely used in the marine and shipbuilding industry … View industry
Across CFD

Other Simulation Area

Aerodynamics Simulation WIND TURBINE & FARM With deep Knowledge in FEA and CFD and combining or coupling different CAE tools for real world simulation … Open capability Hydrodynamics CFD simulation Structures Design Including Hydrodynamics Structures design, including hydrodynamics, is a crucial aspect of marine and offshore engineering. We utilize FEA and CFD … Open capability Multi-Phase Flows CFD Analysis Industrial applications of Multi-Phase Flows CFD Analysis The tools such as Ansys Fluent, Siemens Star-ccm+ and OpenFoam, can be used in combination with experienced engineers … Open capability MultiObjective Design of Turbomachinery Turbine, Pump & Compressor Designing turbomachinery components such as axial turbines, axial pumps, centrifugal compressors, centrifugal pumps, and mixed flow compressor/turbine requires … Open capability Reacting Flows & Combustion Detailed Chemistry In order to accurately model combustion, it is important to account for the interactions between turbulence, mixing, and … Open capability

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