Improving industrial processes is a constant goal in industry. Companies devote considerable effort to optimizing efficiency and reducing production costs and times. In this regard, simulation using Computational Fluid Dynamics (CFD) and other computational techniques has become a tool of great interest for the design and improvement of processes in various sectors. From the storage and handling of materials to chemical and thermal processes, these techniques make it possible to anticipate and correct problems before implementation and construction, saving time and resources.
What is CFD and multiphysics simulation?
Computational Fluid Dynamics (CFD) is a branch of fluid mechanics that uses numerical methods and algorithms to analyze and solve problems involving fluids. This technique allows the behavior of liquids and gases to be studied under different conditions and configurations.
On the other hand, multiphysics simulation extends the scope of CFD by including interactions between different physical phenomena, such as heat transfer, interaction with solid materials, chemical reactions, electromagnetism, or structural mechanics. This allows complex problems to be addressed in which multiple phenomena interact simultaneously.
For example, when the analysis includes solid materials in motion, it is common to use the Discrete Element Method (DEM), a simulation technique that models the behavior of individual particles in systems where interaction between solids is key, such as in granular materials, powders, or capsules. This technology allows phenomena such as segregation, compaction, mixing, and transport of solids in industrial equipment to be analyzed. When fluid-solid interaction needs to be modeled, DEM methods can be combined with standard CFD or with the SPH method, which allows highly dynamic flows with complex interfaces to be solved.
Applications of simulation in industrial processes
The applications of CFD, DEM, and multiphysics simulation are wide-ranging and cover multiple industrial sectors. Some of the areas in which ICEMM has successfully applied these techniques include:
- Water treatment equipment: We model water flow and aeration in treatment plants using CFD, ensuring uniform and efficient distribution.
- Thermal simulation of electrical and electronic equipment: CFD simulation allows the heat transfer by conduction, convection, and radiation between the different parts of a system to be resolved, enabling the cooling of components to be predicted and improved.
- Mineral concentration systems: In the mining industry, we have used CFD and DEM simulations to improve efficiency in mineral separation and concentration processes, optimizing the design and operating conditions in centrifugal concentrators.
- Biomass gasifiers: Using CFD and multiphysics particle models, we have improved the performance of the fluidization air introduction system in biomass gasifiers, optimizing thermal conversion and synthesis gas production.
- Handling and transport of solid materials: DEM simulation has been used to model the flow of solids in conveyors, hoppers, and feeding systems, reducing problems such as jamming and premature equipment wear.
- Mixing and granulation processes: In the pharmaceutical and food industries, DEM simulation allows the interaction between particles in mixers and granulators to be analyzed, ensuring greater homogeneity in the final product. At ICEMM, we have worked on the design and optimization of industrial mixers.
- Plastic bottle storage: Using DEM simulations, we can study and optimize the layout of structural elements inside silos, reducing deformations and blockages and improving material discharge efficiency.
Technologies for simulating complex problems in industrial processes
To perform accurate simulations in different industrial cases, several numerical methods can be used to solve conservation equations and model the behavior of fluids and solids.
For CFD simulations, the most common methods are the Finite Volume Method (FVM) and the Finite Element Method (FEM). While the FVM is more common for conventional fluid mechanics problems, the FEM offers certain advantages for some multiphysics cases. The SPH (Smoothed Particle Hydrodynamics) method is also common for flows with complex air-water interfaces. When working with granular solids, capsules in the pharmaceutical industry, or particles in the mining industry, the most common method is DEM (Discrete Element Method).
In many industrial applications, combining different simulation techniques is necessary to address complex problems efficiently. Some examples include:
- Fluid-structure interaction (CFD-FEM): When a fluid impacts or deforms a solid structure, as in certain hydraulic cases, combining CFD with FEM allows the mechanical stresses and thermal effects on materials to be evaluated.
- Fluid-particle interaction (CFD-DEM): In systems where solid particles are suspended in a fluid, such as in cyclones, separators, or fluidized beds, the coupling between CFD and DEM allows for the analysis of both fluid behavior and particle dynamics.
- Advanced thermal processes in CFD: In applications such as industrial furnaces, turbines, and cooling systems, heat transfer is a key factor. CFD simulation allows the design of these systems to be optimized, reducing energy losses and improving thermal efficiency.
To address these problems, there are multiple software programs that allow high-precision CFD and multiphysics simulations to be performed. Some of the most widely used include Ansys Fluent together with Rocky DEM, MSC Cradle, OpenFOAM, and MFiX.
Why use simulation to optimize industrial processes?
CFD and multiphysics simulation is changing the way industrial processes are designed and optimized. Its ability to model and predict the behavior of complex systems involving both fluids and solids makes it possible to improve efficiency, reduce costs, and achieve better performance in a variety of applications. In an increasingly competitive industrial environment, adopting these tools represents an advantage for innovation in production processes.
At ICEMM, we have been performing simulation and calculation work for 20 years in various industrial sectors where Computational Fluid Dynamics (CFD) techniques are applied. To do this, we use multiple simulation software programs that allow us to utilize the most advanced calculation technologies and provide an efficient, high-quality service.
We also have extensive experience in structural studies using the finite element method (FEM), which allows us to provide a comprehensive service to customers who require studies or optimizations of their products in this field.
Our approach is focused on the customer and the specific needs of the project or development, where we apply our experience and technical capabilities to help obtain a safer, higher-quality product with the help of simulation.
