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Flow simulation Among other models for the calculation of the flow of air in spinning and texturizing nozzles were developed: In nozzles with very a very small drill cross section high air velocities can be reached in textile technological processes, which mostly require a consideration of the compressibility of air. In areas of yarn formation it often comes to a compression of air which can both support (texturizing process) and also obstruct (spinning process) the process. Flow simulation is also a suitable tool for the local and temporal outlook on the compression in the nozzle and renders a service concerning the nozzle design. The example shows the temporal development of the velocity field in a nozzle for the production of hybrid yarns (FiSta)which was produced at the ITV. In places with a high velocity gradient compressions take place. Here you can see a flow simulation.
Contact: Dipl.-Ing. Uwe Heitmann
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