Besides the requirements with regard to the design, component stress and materials processing, the fluidic properties of products in plastics technology get more and more important. This is relevant e.g. for products in the fields of automotive, household appliances and medical.

Our fluid technicians use the numerical fluid simulation (Computational Fluid Dynamics) during the product development in order to predict the fluidic properties of components. The use of CFD allows for an analysis of complex fluidic problems in an early development stage and to derive constructive solutions from the results obtained in this analysis.

In practice M.TEC uses for fluid measurements the measurement technique Multi.HFM.
Multi.HFM allows for direct and simultaneous measurement of 16 (optionally up to 32) air mass flows and therefore off ers a unique combination of high accuracy of measurement andhighest user-friendliness.
The newly developed measuring system Multi.HFM is a useful universal device where it is necessary to measure multiple air flows simultaneously. Its setup permits its use in both a mobile unit as well as a test stand.
Multi.HFM has been established at car manufacturers and well-known automotive system suppliers of climate systemssuccessfully.

Furthermore we use the Particle-Image-Velocimetry (PIV) method, an optical procedure for the measurement of a flow field. By means of a light-section optic a pulsed laser is stretched to a light level. The flow is inoculated with tiny particles, which light up in laser lightning. With a special digital camera two pictures are taken up in short time intervals (millisecond range). The measuring computer evaluates the particle movements and thus determines the flow rates within the measurement level.

PIV is an optical measuring procedure, that means, that the flow is not disturbed during the measurement. PIV requires an optical accesibility to the measuring range (windows, transparent parts).
The technique makes it possible to get a snapshot of a flow and a contemporary evaluation of the flow field.

The measuring technique is suitable for parts with a fluidtechnical character, for example air conditioning products (e.g. side and centre nozzles in the vehicle), domestic appliances (e.g. dryers, vacuum cleaners, hair-dryers) or within the range of the aerodynamics (e.g. vehicle wind tunnel).