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Application Areas
- Simulation
of galvanic corrosion
- Design
of cathodic protection systems
- Simulation
of electrodeposition and other similar processes
- Electrostatic
analysis
- Prediction
of current demand
- Marine
corrosion control
- Pipeline
design and maintenance
Benefits
Improved and More Reliable Design
- Optimisation
by simulation
- Optimisation
of anode location
- Life
Prediction
- Prediction
of current densities and potentials on structure
surfaces
and in electrolyte
- Training
simulator for CP design engineers
- Prediction
of corrosion rates
- Prediction
of current demand and how it changes with time
- Evaluation
of new CP designs
- Investigate
new anode types and shapes
- Prediction
of anode consumption rate, life expectancy,
diameter reduction
- Optimise
anode and reference electrode location
- Optimisation
of CP retrofit programs
Interference Prediction, Control & Reduction
- Electric
field prediction
- Prediction
of stray current and interaction of CP systems
- Independent
galvanic systems can be defined
- Interaction
between the systems can be predicted
Accurate Prediction
- Evaluation
and interpretation of inspection data
- Simulates
changes in environmental conditions
- Detailed
local models of critical areas of a structure
(eg surface nodes, pile guides etc)
- Global
models of large and complex structures
- Simulate
build up of calcareous scale
Comprehensive Features
- Impressed
and Sacrificial anodes system
- Simple
modelling of large ocean regions
- Detailed
representation of non linear polarisation
- Time
dependent and steady state predictions
- Multiple
region analysis to represent electrolytes of
differing properties
- Representation
of static and time dependent non linear polarisation
- Flexible
structure for polarisation data and simulating
various environmental condition parameters
- Simple
representation of field boundaries (eg infinite
boundaries)
- Independent
(floating) electrodes can be simulated
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Element Library
- Complete
range of elements including both discontinuous
and continuous elements
- Hierarchical
element types allow model refinement without
change of mesh
- For
three dimensional problems: quadrilaterals
and triangles
- For
two dimensional and axisymmetric problems:
isoparametric lines
- All
elements have high order shape functions for
accurate model representation
Analysis Features
- Comprehensive
checking of data and of computer resources
required ensures that no analysis runs are
wasted
- Local
error guides to give clear indication of solution
accuracy
- Evaluation
of total current balance
- Efficient
and economical solution at as many user-specified “internal
points” as required
- Step-by-step
analysis option allows re-analysis to be carried
out after minor changes without recalculation
of matrices
Zoning or Substructuring
A model can be split into any number of zones or substructures to represent
different components or electrolytes and to improve the run times and
use of computer resources.
Interface
conditions between zones include:-
- Added
current
- Surface
resistance (membrane)
- Potential
jump
- Polarisation
- Current
flow to external source or sink
Boundary Conditions and Loading
- Potential
- Current
Density
- External
(structure) potential
- Polarisation
(as a function of time, current, potential,
depth, flow, velocity)
- Linear
polarisation
- Point,
line and volume current sources
Geometry Features
- Implicit
symmetry about any axis
- General
zoning and substructuring
Material Properties
- The
electrolyte can be represented by zones of
differing conductivity/resistivity
Quality Assurance - Verification Tests
The predictive power and capabilities of BEASY have been verified through
measurements and comparisons with CP performance data. Full details of
verification studies and tests are provided in the User Guide and have
been published.
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