Simulation Software for Fluids and SolidsSimulation inclined blade stirrer
The simulation of mixing and stirring in inclined blade stirrers can perfectly be performed using the NOGRID points CFD software. This type of stirrer operates at high rotational speeds and is classified as a tangentially and axially conveying mixer, primarily used for low-viscosity media. The container shapes used with these stirrers often vary in their slenderness ratios and bottom shapes.
In this case, the inclined blade stirrer has a round bottom (dished bottom), making it suitable for pressure-resistant stirring processes. Furthermore, fluid-dynamic dead zones are avoided by the continuous transition to the cylindrical container wall. Containers with low aspect ratios, like the one in this case study, are typically designed for small volumes.
The inclined blade stirrer exhibits a strong conveying effect and still generates a vortex. The resulting characteristic flow pattern is determined by the stirring speed as well as the geometry of the container and the stirrer blades.
Mixing is an important part in chemical industry and is involved in processes such as the dispersion of two or more liquid, powdery, or gaseous components, deagglomeration to prevent lump formation, and homogenization of mixtures.
Improve product performance and reduce costs
Mixing simulation helps to understand the flow behavior within an agitator, enabling quick recommendations for design and operational improvements. This leads to enhanced product performance and a reduction in both production and maintenance costs.
Compute any conceivable agitator geometry with mixing simulation
NOGRID provides a broad selection of rheology models, including those commonly used in chemical industry. With its unique capability to handle moving parts within the fluid domain, NOGRID enables the simulation of any agitator geometry and operating mode, such as
- rotating and counterwise rotating agitator blades, possibly moving up and down periodically at the same time
- overlapping operation ranges of moving parts as found in twin-screw agitators
- free surfaces at inlets or for different fluid levels or for fast rotating agitators with high centrifugal forces
Benefit from very short computation time
One of the key advantages of NOGRID's meshless CFD software is its fast preprocessing - no need for mesh generation - combined with the outstanding short computation times, even for complex moving parts typically found in agitators.
Advantages of NOGRID points software
NOGRID points combines the capabilities to handle free surface flow and moving parts within the domain. This leads to the following advantages:
- fully 3D computation solving the complete Navier-Stokes equations
- easy and intuitive setup for mixing cases
- freely definable material properties by equations or curves
- evaluation of the mixing quality
- open or closed domains including inflow and outflow areas (non-batch mode)
- moving of the mixers in any direction
Why choose Nogrid?
NOGRID provides professional CFD software for the simulation of fluid flow, heat and mass transfer, and chemical reactions. Its efficient modelling workflow helps engineers analyse flow behaviour, evaluate designs and make informed decisions without creating a conventional volume mesh.
Faster model preparation
With NOGRID, only the geometry boundary needs to be meshed. The finite points inside the fluid domain are generated automatically according to user-defined settings, both at the start of the simulation and during the calculation.
This approach reduces preprocessing effort and makes it easier to prepare complex geometries and cavities for simulation.
Efficient CFD workflow
The modelling process follows four straightforward steps:
Build the geometry. Mesh the boundary. Define the simulation. Start the calculation.
NOGRID is designed to provide short computation times, including for applications involving complex cavities. Engineers can use the resulting data to examine flow distribution and other relevant flow characteristics.
Better insight into fluid-flow processes
CFD solves the fundamental equations governing fluid flow. NOGRID software enables engineers to predict and analyse the behaviour of fluids and related physical processes before or alongside physical testing.
The simulation results can support:
- evaluation and comparison of design alternatives
- optimisation of construction and operating parameters
- improved planning reliability
- reduction of development time and testing effort
- faster progression from design to market or operation
Steps from geometry generation to simulation results
TRAINING
Our two-day training courses teach participants how to set up, run and evaluate simulations efficiently with NOGRID CFD software. The courses include practical guidance for handling different types of simulation cases.
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Technical Support
Professional support is available from the beginning of your work with NOGRID. Our technical team assists users by telephone and email with software operation, case setup and simulation-related questions.
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Simulation Service
When internal time, expertise or resources are limited, NOGRID can support your project with individual numerical simulation services. Our engineers develop and evaluate CFD models based on the specific requirements of your application.
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