Simulation Software for Fluids and SolidsSimulation 2-blade Stirrer with Baffle
If you want to simulate the mixing process in a 2-blade stirrer with a baffle, NOGRID points CFD software is an excellent choice.
Use of 2-blade stirrers
The 2-blade stirrer in this case study is a tangential impeller type, typically used for medium-viscosity media. The containers used often vary in their degree of slenderness and bottom design. This 2-blade stirrer has a conical bottom, making it suitable for pressure-resistant mixing processes. Additionally, the conical shape allows for quick and efficient emptying.
Containers with high aspect ratios, like the one in this study, are usually designed for large-volume applications. The 2-blade stirrer does not have a pronounced conveying effect, as the container is only moved tangentially. To counteract the tangential flow and prevent vortex (trombe) formation, baffles are used in the setup. These baffles help stabilize the flow and improve overall mixing efficiency.
Mixing plays a key role in the chemical industry and is involved in processes such as dispersion of two or more liquid, powdery, or gaseous components, the deagglomeration to prevent lump formation, and the homogenization of mixtures.
Improve product performance and reduce costs
Mixing simulation helps to analyze the flow within an agitator, enabling quick recommendations for optimizing design and operating parameters. This leads to improved product performance and reduced production and maintenance costs.
Compute any conceivable agitator geometry with mixing simulation
NOGRID offers a wide range of rheology models including those commonly used in the chemical industry. Its unique capability to handle moving parts within the fluid domain allows for the simulation of any conceivable 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 of very short computation time
One of the key strengths of NOGRID's meshless CFD software is the fast preprocessing - no grid generation is required - and the outstanding short computation times, even for complicated moving parts typically found in agitators.
Capabilities of NOGRID software
NOGRID combines the ability to handle free surface flows 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
Nogrid's strengths
Particular strengths of NOGRID's fluid flow CFD software are the rapid preprocessing (no fluid grid needs to be generated, only the boundary mesh, inner finite points are generated automatically depending on User setting initially and during computation), and the outstandingly short computation time even for complicated cavities.
As you can see in the image below, the boundary of the geometry still requires a mesh to allow the interior finite points to detect the boundary. The boundary must therefore be meshed and the finite points inside are automatically generated during the simulation controlled by User specifications.
Easy and fast modelling: Build geometry, mesh boundary, setup the case and start computation
What is CFD from NOGRID?
CFD solves the fundamental equations that define the fluid flow process. With CFD software from NOGRID every engineer makes better decisions by predicting, analyzing and controlling fluid flow, heat and mass transfer or chemical reaction. By using NOGRID software for flow modeling you receive information on essential flow characteristics as for example flow distribution. Using it additional to testing and experimentation NOGRID software helps to improve the evaluation of your design – resulting in better construction and operation parameters, increasing planning security and money savings due to faster time to the marketplace for your product or process.
Choose NOGRID
With NOGRID, you choose professional CFD software and services – our aim is helping you to be successful. When you decide to work with NOGRID you choose close cooperation with a dynamic, flat hierarchies-organization. Short information channels result in quick and accurate professional support and service. Our team consists of highly qualified employees, who are experts in fields such as numerical simulation or computational fluid dynamics. Based on our know-how, we are pleased to offer the following services, responding to your individual requirements:
TRAINING
In our two-days training courses you will learn, how to use NOGRID CFD software efficiently. Our technical support team will teach you how to handle and solve different cases.
For more details please refer to Training Courses →
Technical Support
We offer full professional support from the minute you start using our software, by telephone or by email. Contact us, when ever needed.
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Service
Lack of time or resources and other constraints often make outsourcing an attractive solution. We help you with your flow modeling needs. Based on our engineering expertise in this field we offer individual numerical simulation services matching the unique needs of your organization.
For more details please refer to Simulation Services →
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