Trade / Communities Ship Hydrodynamics: Wave-induced Motions and

Trade / Communities Ship Hydrodynamics: Wave-induced Motions and

Trade / Communities
Ship Hydrodynamics: Wave-induced Motions and
Loads
Research
purpose/impact
Changes in ships in terms of scale and type,
as well as operational, economic and
environmental requirements, make the use
of first principles approach in the global
structural analysis and design of the ship
more prevalent, either on its own or in
combination with prescriptive rules of
Classification Societies. The arrival of the
Goal Based ship construction Standards and
the drive for efficient and environmentally
friendly operations make the development
of numerical tools for the accurate
prediction of wave-induced motions and
loads extremely important.

Pressure coefficients on rolling shiplike
sections obtained using RANS CFD

Model tests showing bow immersion in rogue
waves

Collaborations

Lloyds Register
The Lloyds Register Educational Trust
Prof. P. Temarel
Prof. S.R. Turnock
Dr. D.A. Hudson
Dr. T.M. Ahmed (University of Alexandria)
Dr. S.H. Miao
Dr. S. Denchfield

www.southampton.ac.uk

Research description
A range of research projects aimed at
obtaining an accurate prediction of ship
motions and loads, using rigid body
hydrodynamics,
hydroelasticity
and
Computational Fluid Dynamics (CFD).
G-HYdroflex: Evaluation of wave-induced
motions and loads on mono- and multi-hulled
vessels using two- and three-dimensional
hydroelasticity analyses whereby the vessels
structure is idealised using beam or threedimensional Finite Element idealisation and
the fluid actions described using potential
flow.
Parametric roll resonance occurs in (nearly)
head or following seas, due to transfer of
energy from heave and pitch motions to roll.
Two- and three-dimensional methods are
developed,
including
influence
of
nonlinearities, to predict parametric roll.
Inclusion of the influence of viscous effects
on hydrodynamic actions of heaving, swaying
and rolling sections using Reynolds Averaged
Navier Stokes equations (RANS CFD). The
effects are especially important for roll
damping and the prediction of roll motion.
Rogue or Freak waves are extreme events.
The research focuses on their experimental
and numerical generation, as well as the
evaluation
of
wave
loads
for
ships
encountering rogue waves.
Beluga Projects was one of the first ships
equipped with a full-scale site propulsion
Damage sustained by a Post-Panamax
system.
container ship due to parametric roll
resonance

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