Simulations are not only a way to accelerate development, reduce risk of failing prototypes and reduce testing time. It’s also a way to get the customer a very early understanding of the product that is being proposed for their application.
In Dinex, simulations and the importance of simulations have long been recognized, and today, new products often start as a 1D simulation model on which quick loops of optimization can be wielded to propose high accuracy, realistic ATS concepts in terms of size, performance and cost. By frontloading simulations as early as possible, our OEM partners can rest easy that even a highly customized aftertreatment system will have the right technologies to reach the desired emission levels, durability and noise attenuation.
Simulation accelerates the development cycle by enabling early design validation and rapid iterations - reducing lead times and streamlining the path from concept to production.
By predicting system performance digitally, simulation minimizes the need for physical prototypes - saving both material and testing costs while avoiding costly late-stage redesigns.
Advanced chemical and reaction modelling ensures accurate prediction of aftertreatment behavior - enabling compliance with stringent global emission standards before testing even begins.
At our R&D centre in Germany, specialists lead the development of our proprietary emission models. These go beyond basic chemistry - delving into catalyst behaviour under transient, complex phenomena such as oxygen storage, NOX storage, ammonia adsorption and washcoat diffusion effects, on models calibrated with engine bench test data. The result? Finely tuned models that can predict performance before a single prototype is built.
Catalyst 1D modelling
CFD single phase
The passing of exhaust gas from inlet of the aftertreatment system to outlet, is at the core of our products. It is therefore no surprise that CFD (Computational Fluid Dynamics) is applied very widely for many different purposes. We predict pressure drop, evaluate distribution of flow, ammonia and hydrocarbons on catalyst inlet faces, and the risk of deposits – requiring a simulation model to predict the thermal decomposition of AdBlue, we may also simulate how exhaust gas is expelled out of the outlet or use our CFD model as an input to predict surface temperature.
Finite Element and NVH simulations help fine-tune structural strength and noise performance - resulting in more robust systems with superior acoustic characteristics.
With customized simulations for every project, we ensure that even complex customer demands are met - supporting optimal fit, performance, and compliance from day one.
Advanced FEA (Finite Element Analysis) helps us predict vibration behavior, natural frequencies, and structural fatigue. In parallel, NVH (Noise, Vibration, Harshness) simulations refine acoustic performance by predicting transmission loss - making our systems quieter and more durable.
Our simulation capabilities are built over the course of close-to two decades and our in-house expertise is ever expanding with improved or new methodologies and continuously validated through real-world testing in our test facilities. This solid foundation enables us to develop highly accurate digital models that predict system performance under real operating conditions.
The integration of simulation tools into every stage of our development process reduces costly redesigns and accelerates the path from concept to market. It also enhances the technical quality of our solutions – allowing Dinex to consistently deliver smarter, more efficient aftertreatment systems tailored to the needs of each OEM partner.
FEA natural frequency
NVH Transmission loss