GeoDict User Guide 2025

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Navigation: GeoDict 2026 - User Guide > Simulation & Prediction

AddiDict

Use AddiDict to simulate mass transport by advective and diffusive movements. Mass transport can be simulated either for particles, resolved molecules, or a concentration field that represents the molar concentration of a solute. Additionally, AddiDict allows you to simulate adsorption reactions based on the transported molecules or concentration field.

New in GeoDict 2026

The new Adsorption command has been added, enabling the simulation of solute transport including sorption processes. You can select from several sorption isotherms and specify the associated parameters. Two methodologies are available - a Tracer-based and a Field-based approach - both generating compatible file formats that can be used interchangeably.

Learn to use AddiDict
Theoretical Background Understand the theory behind AddiDict's computations. Track Particles & Molecules Simulate the movement of particles or molceucles through a structure. Transport Concentration Field Simulate the transport of a concentration field through a structure. Adsorption Simulate adsorption reactions inside of your structure. Advection Diffusion GeoApps Choose from the available AddiDict GeoApps. References See the references for more relevant literature.

Learn to use AddiDict

Theoretical Background
Understand the theory behind AddiDict's computations.
Track Particles & Molecules
Simulate the movement of particles or molceucles through a structure.
Transport Concentration Field
Simulate the transport of a concentration field through a structure.
Adsorption
Simulate adsorption reactions inside of your structure.
Advection Diffusion GeoApps
Choose from the available AddiDict GeoApps.
References
See the references for more relevant literature.

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Visit the Community on GeoDict Forum to be inspired and get answers to top questions.
Find illustrative application examples on the website.
Our tutorials and seminar videos give you a first hands-on experience. They are collected in the Learning Center.
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GeoDict User Guide 2025

AddiDict

New in GeoDict 2026

Join the conversation