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Chemical Engineering Module
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Droplet Breakup in a T-junction
Emulsions consist of small liquid droplets immersed in an immiscible liquid and widely occur in the production of food, cosmetics, fine chemicals, and pharmaceutical products. The quality of the product is typically dependent on the size of the droplets. Simulating these processes can help in optimi...
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Boiling Flow
When modeling boiling flows, the mass transfer across the phase boundary, as well as the absorption of latent heat as the liquid evaporates, needs to be accounted for.
Here, a liquid is initially at rest above a thin layer of vapor, where the temperature in both phases is that of the saturation t...
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Rising Bubble
The level set method is well suited for problems with moving boundaries in which the geometry’s topology changes with time. A bubble of oil that travels up through water and finally merges with oil at the top causes this kind of topology change. For problems where the topology is unchanged as a fu...
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Two-Phase Flow Modeling of a Dense Suspension
Liquid-solid mixtures (suspensions) are important in a variety of industrial fields, such as oil and gas refinement, paper manufacturing, food processing, slurry transport, and wastewater treatment. Several different modeling approaches have been developed by the CFD community, ranging from discrete...
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Chemical Vapor Deposition of GaAs
Chemical vapor deposition (CVD) allows a thin film to be grown on a substrate through molecules and molecular fragments adsorbing and reacting on a surface.
This example illustrates the modeling of such a CVD reactor where triethyl-gallium first decomposes, and the reaction products along with a...
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NOx Reduction
This model treats the selective catalytic reduction of NOx in an exhaust gas stream. The reaction takes place on the catalytic surface of a monolith reactor.
A first simulation models the monolith channel as a plug-flow reactor. A second simulation takes the actual channel geometry into account...
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A Rechargeable Lithium Battery Model – Charge and Discharge Behavior
The transient charge and discharge performance of a rechargeable Li battery is strongly dependent on the design and choice of materials.
This model allows you to investigate the behavior of a Li-ion cell based on a number of design parameters. The model simulates cell voltage, capacity, current d...
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Fuel Cell Stack
A key optimization parameter in a fuel cell is the design of the reactant and product channels and inlets and outlets. Good designs require that the electrodes are well fed with a reactant and that products are removed as quickly as possible. A further desire for a good fuel-cell design is that fuel...
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Thermal Decomposition of a Chemical through a Parallel Plate Reactor
This model investigates the unimolecular decomposition of a chemical passing through a parallel plate reactor. The heat sensitive compound is present in a water solution.
After entering the reactor, the liquid first experiences expansion, due to a step-change in geometry at the bottom plate. Befo...
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Current Density Distribution in a Solid Oxide Fuel Cell
This model presents a study of the current density distribution in a solid oxide fuel cell (SOFC).
The model includes the full coupling between the mass balances at the anode and cathode, the momentum balances in the gas channels, the gas flow in the porous electrodes, the balance of the ionic cu...
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