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Sea Keepers Service

CFD & Hydrodynamics

Advanced computational fluid dynamics and hydrodynamic analysis covering resistance, propulsion, seakeeping, manoeuvring, and offshore and coastal wave loads for all vessel and structure types.

What We Offer

4 specialist capability areas

01

Resistance & Propulsion

  • Calm-Water Resistance CFDRANS-based resistance prediction across the speed range, including wave and viscous drag decomposition.
  • Self-Propulsion SimulationVirtual self-propulsion test — thrust deduction, wake fraction, and propulsive efficiency.
  • Propeller Design & AnalysisOpen-water performance curves, cavitation inception prediction, and tip vortex characterisation.
  • Hull–Propeller–Rudder InteractionPressure pulses, bearing forces, and efficiency losses from hull wake non-uniformity.
  • Appendage Drag AssessmentResistance contribution of bilge keels, stabiliser fins, shafting, and other appendages.
02

Seakeeping & Motions

  • Strip Theory / 3D Panel SeakeepingFrequency-domain vessel motions (heave, pitch, roll) in regular and irregular seas.
  • CFD SeakeepingTime-domain CFD simulation of vessel behaviour in severe seas including green-water and deck wetness.
  • Roll Damping & StabilisationBilge keel and active fin stabiliser sizing; roll response prediction with and without stabilisation.
  • Added Resistance in WavesSpeed loss prediction in sea states for voyage performance and fuel consumption modelling.
03

Manoeuvring & Dynamic Positioning

  • Manoeuvring SimulationTurning circle, zig-zag, pull-out, and crash-stop performance against IMO criteria.
  • DP Capability AnalysisEnvironmental force modelling and thruster allocation for DP Class 1/2/3 systems.
  • Shallow Water & Restricted Channel EffectsSquat, bank suction, and interaction effects in confined waterways.
04

Offshore Hydrodynamics & Coastal Engineering

  • Wave Load Analysis (Morison / Diffraction)First- and second-order wave forces on fixed and floating offshore structures.
  • Ringing & Springing ResponseHigh-frequency structural loading on monopiles and column-stabilised units.
  • Scour & Seabed InteractionCFD-informed scour assessment around foundations, cables, and pipeline spans.
  • Tidal & Current Flow ModellingVelocity field prediction for current turbines, intakes, and diffusers.
Project Flow

From requirement review to delivery support

01

Requirement Review

Sea Keepers aligns engineering, procurement, operations, and client coordination around the project objective.

02

Technical Planning

Sea Keepers aligns engineering, procurement, operations, and client coordination around the project objective.

03

Execution

Sea Keepers aligns engineering, procurement, operations, and client coordination around the project objective.

04

Inspection

Sea Keepers aligns engineering, procurement, operations, and client coordination around the project objective.

05

Delivery Support

Sea Keepers aligns engineering, procurement, operations, and client coordination around the project objective.

06

After-Service

Sea Keepers aligns engineering, procurement, operations, and client coordination around the project objective.

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