The VariSim Simulator

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VariSim is a professional pipeline hydraulic simulator product. It is a windows based package written in the .NET environment that takes full advantage of today’s computing power and software advancements. It is based upon principals that have been developed, tested and verified within the Hydraulic Analysis Group during the last 40-year period within a rigorous research and development program. The result is an innovative, fast and reliable product that encapsulates the experience and knowledge within the group and provides the user with an easy to use modelling environment with easily accessible results.

VariSim has a very impressive capability, which can be used for detailed steady state and transient hydraulic studies. As a PC based design and planning tool, it is ideal for studying the complexities of fluid behaviour in pipelines. VariSim has been designed to ensure that it accurately simulates any component of a system that can affect the fluid behaviour. This means, liquid or gas, small plant pipe work, long transmission lines, district heating networks, variable flow regimes, telemetry effects, suppression equipment, air valves, control logic etc. can all be simulated.

VariSim Simulator Output

VariSim Environment

  • Graphical Configuration
  • Profililing
  • Trending
  • Dockable Windows
  • Graphing Functions
  • Data Export
  • Reporting via .pdf
  • Image capture
  • Selectable Units
  • User specific display
  • Macro Editing
  • Model Component Browser
  • Drag and Drop Data Movement
  • User generated data lists

 

 

 

 




SIMULATION CAPABILITY

VariSim has a very impressive simulation capability in addition to promoting ease of use and ease of access to all of its calculated output.

Liquids Simulation Gas Simulation  
    • Fixed Pressure or Flow Boundary
    • Pressure Sensitive Flow Boundary
    • Pumps
    • Heaters and Burners
    • Relief Valves (Standard and Danflo)
    • Non Return Valves
    • All Valve Types
    • Air Valves
    • Overboard Dump Valves
    • Breakaway Couplings
    • Free Discharges and Tanks
    • All Control Schemes

 

    • Variable Wavespeed
    • Thermal Simulation
    • Variable Product
    • Cavitation / Vapour formation calculation

 

    • Selection of Equations of State
    • Variable distance and time steps
    • Modern technology
    • State of the art display of data
    • Fixed Pressure or Flow Boundary
    • Pressure Sensitive Flow Boundary
    • Compressors
    • Heaters and Heat Exchangers
    • Standard Relief Valves
    • Non Return Valves
    • All Valve Types
    • All Control Schemes

 

    • Variable Wavespeed
    • Thermal Simulation
    • Variable Product

 

    • Selection of Equations of State
    • Variable distance and time steps
    • Modern technology
    • State of the art display of data
    

 

Flows, pressures, temperatures or any product information (including composition values in pipes receiving a mix of fluids) can be provided as point values at any location on a pipeline. All control scheme parameters can be accessed and assessed. Inventories of any pipe or zone can be reported in energy or mass terms and equipment operating characteristics can be monitored. Alarms can be generated if you operate outside of your maximum allowable and minimum allowable operating envelope and reports can be generated for post assessment.

VariSim's import capability allows it to create its model from third party sources including other modelling packages and care has been taken to ensure that VariSim output is easily accessible and easy to understand using industry familiar terminology. This capability and its unique ability to model variable wavepeeds and variable time steps make this product extremely competitive within in its market. We are sure that you will find VariSim commands a challenging position in its industry and if you would like to learn more, click on the related link to the VariSim website.

EXPANDING THE VARISIM CAPABILITY

One of VariSim's major strengths is its ability to offer much more than just PC based simulation. VariSim can become an integral component within the VariSuite framework. It can be supplemented with a training simulator add-on that incorporates SCADA style displays and training simulator tools to provide 'flight simulator style' pipeline simulators.

In addition, it is a simple step to turn VariSim into an online simulator that can be driven by recorded pipeline instrumentation data (flows, pressures, temperatures etc, equipment status etc.). This provides a complete picture of the actual pipeline, equipment or network behaviour. If it can be connected via a standard OPC connection to a data acquisition system such as SCADA, this complete picture can be provided in real time.

Pipeline Management Applications can be added that operate using output from an online VariSim simulator. These Pipeline Management Applications such as leak detection, capacity management, product and batch tracking etc. provide commercial payback to pipeline operating companies in a matter of months.

Communicating with VariSim is refreshingly simple. When the mode of VariSim is changed from standalone to online or offline, it can communicate with the SSL messaging middleware. Communication with other applications is simply a case of allowing the application to communicate with VariSim via this middleware. For more information see the VariSuite Components page.