Modell Galerie

Die Modell Galerie umfasst COMSOL Multiphysics Modelldateien aus einer Vielzahl von Anwendungsbereichen, die von Mechanik und Elektronik über Strömungen bis zur Chemie reichen. Sie können fertige Modelle herunterladen sowie Schritt-für-Schritt-Anleitungen, mit denen Sie die Modelle nachbauen können, und verwenden Sie die Modelle als Ausgangspunkt für Ihre eigenen Anwendungen. Nutzen Sie die Quick Search, um die für Ihren Fachbereich relevanten Modelle zu finden. Um die Dateien herunterzuladen, loggen Sie sich ein oder erzeugen Sie einen COMSOL Access Account, der mit einer gültigen COMSOL Lizenz assoziiert ist.

Tank Series with Feedback Control

This example highlights the underlying tools used to set up and solve systems of coupled ordinary differential equations (ODEs). Getting acquainted with this structure allows you to confidently modify and move beyond the reactor models that are predefined in the software. The model treats a series of three consecutive tank reactors. A feedback loop continuously adjusts the inlet concentration ...

Buoyancy–driven μPCR for DNA Amplification

Polymerase chain reaction (PCR) is one of the most effective methods in molecular biology, medical diagnostics, and biochemical engineering in amplifying a specific sequence of DNA. There has been a great interest in developing portable PCR-based lab-on-a-chip systems for point-of-care applications and one strategy that seems very promising is natural convection-based PCR. This model studies ...

Ammonia Synthesis PFR

This example demonstrate the modeling of a plug flow reactor for the synthesis of ammonia in the Haber-Weiss process. The catalytic reactor in this process operates under non-isothermal conditions, where temperature and pressure varies substantially along the length of the reactor, in addition to the variation in composition.

Transport and Reaction in a Catalyst in 3D

Consider the study of a mass balance of a diluted species in air, for example, a pollutant in an exhaust stream. The model’s aim is to calculate the concentration profile of this species, which is decomposed by a catalyst present on the surface of a porous supporting structure. In a first step, you solve the velocity field for the solution assuming that the diluted pollutant has no influence ...

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