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Introduction to CFD-DEM for modelling fluid-particle systems
Granular materials are everywhere! In fact, they are present in about 70% of all industrial processes. In many cases, the granular material does not exist in isolation - their behavior is significantly influenced by the liquids and gases in which they are found. These particle-fluid, or multi-phase flows, are encountered…
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Using Tracers in a Barracuda Virtual Reactor Model
Tracers can be used to track fluid flow and fluid residence time in a simulation. Tracers are Lagrangian entities that do not have any mass or volume, and they follow the fluid flow path. They can be injected at a Pressure, Flow, or Injection BC, and they can pass through BC Connectors in order to fully follow the fluid…
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Using a PID Controller Script to Control Boundary Conditions
In some Barracuda Virtual Reactor simulations, it is useful to dynamically and automatically control flow rates, pressures, temperature, or other parameters at boundary conditions (BCs) based on information from data points, flux planes, or other output files. It is possible to achieve such control of BCs by using a script…
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Monitoring and Troubleshooting Particle Feed
In many Barracuda simulations there is a particle feed of some kind. Most commonly this will be at a Flow or Injection BC. It is important to monitor a particle feed to ensure that it is meeting the expected flow rate. A few things are important to be able to monitor feed flow rates: Specify a Flux plane name for all…
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Understanding Variation in Barracuda Simulation Results
Randomness in Barracuda Simulations in Barracuda Virtual Reactor often necessitate modelling the interactions of millions, if not billions, of particles while simultaneously accounting for fluid dynamics, chemistry, and thermal calculations. The computational load to model each of these particles discretely would be…
