CFD simulation

CFD simulation (CFD = computational fluid dynamics) can be used to save costs and avoid unnecessary failed tests or time-consuming test set-ups for both indoor air and Process Air Technology issues. In the field of industrial production and processing, the design of a machine's fluidic optimization often raises questions about its Process Air Technology effects. Therefore, experiments are often carried out in which parameters such as local velocities, temperatures or degrees of turbulence are recorded in order to confirm the effect of the planned measure in advance. In many applications, however, this is not possible at all during the planning stage and is only possible with great effort after implementation, for example in the case of rotating blades, transient processes with inaccessible measuring ranges or extremely hot applications. The solution: a CFD simulation that calculates and visualizes air flows and thermodynamic influences as early as the concept phase. For a safe, predictable result. A CFD simulation provides valid information on many Comfort Air Technology issues, such as pressure distribution in a ventilation system, air flow or flow optimization of components. Calculation models such as Navier-Stokes equations, Euler or potential equations are used to calculate air flows. An example from practice: Validation of a heating/cooling concept in an airport hall The plan was to install air conditioning with displacement air outlets in columns ("terminals") distributed throughout the room, as well as additional heating units. The criteria to be tested were the temperature distribution and the flow field in the room. In order to further minimize the calculation effort and thus the costs, not the entire terminal was mapped in the model, but two representative sections. The cut surfaces were assigned symmetry boundary conditions; the calculations were carried out in 3D and stationary. The calculation results showed a balanced temperature distribution in both the cooling and heating cases, in which the temperature gradient could be classified according to DIN EN ISO 7730 - the concept was therefore confirmed. Are you also faced with flow-related issues? Would you like to safeguard a planned climate concept or a new production process in advance or check an existing installation? LTG engineers will be happy to help you - contact us!

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