# Application Gallery

The Application Gallery features COMSOL Multiphysics tutorial and demo app files pertinent to the electrical, mechanical, fluid, and chemical disciplines. You can download ready-to-use tutorial models and demo apps with step-by-step instructions for how to create them yourself. The examples in the gallery serve as a great starting point for your own simulation work.

Use the Quick Search to find tutorials and apps relevant to your area of expertise. Log in or create a COMSOL Access account that is associated with a valid COMSOL license to download the MPH-files.

### Modular Mixer-Turbulent Mixing (k-omega)

This model provides you with tools to build a variety of mixers by combining two common types of vessels with two types of impellers. The mixers are baffled flat and dished bottom vessels with either pitched blade impellers or Rushton turbines. The model includes three examples using the Rotating Machinery, Fluid Flow branch with the frozen-rotor study type. The first example solves a laminar ...

### Mixer

The purpose of the Mixer application is to provide a user-friendly interface where scientists, process designers, and process engineers can investigate the influence that vessels, impellers, baffles, and operating conditions have on the mixing efficiency and the power that is required to drive the impellers. You can use the app to understand and optimize the design and operation of a mixer for a ...

### Behavior of Power Law Fluids in a Mixer

This model shows how to use simulations to predict power numbers with Power Law fluids in a mixer. It simulates the behavior of flow in a flat bottom tank with a single four-blade pitched impeller. The flow was modeled as laminar and the frozen rotor approach was used to solve the discrete governing equations in one quarter of a baffled tank. The calculated power numbers were compared with ...

### Non-Isothermal Flow in a 2D Mixer

This model illustrates the modeling of temperature distribution in a simplified mixer.

### Mixing of Water in a Flat Bottom Mixer

This tutorial example simulates the flow in a flat bottom mixer containing, agitated by a pitched four blade impeller, where the fluid is water, and flow is assumed to be turbulent. The flow in the mixer is modeled using the k-ε turbulence model, and a time-dependent simulation corresponding to 30 revolutions of the impeller is performed in order to reach the operating conditions of the mixer. ...

### Mixer with Free Surface and Bottom Impeller

Time-dependent rotating machinery k-epsilon turbulence model of a mixer, including free surface deformation. The model equations are first solved for a frozen rotor study. The solution from the frozen rotor study is used as initial condition for the time-dependent studies, which include the displacement of the impeller. Two possible time dependent studies are available for two different rotating ...

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