Modellbildung für Grenzflächeninstabilitäten zwischen strömenden Medien zur Prozeßoptimierung bei der Metallpulverherstellung

A. Schatz (), K. Kirchgässner (), E. v. Berg (), M. Bürger (), G. Pohlner (), X.-N. Chen, R. Gerling, G. Reif and H. Meinhardt
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A. Schatz: Universität Stuttgart, Institut für Kernenergetik und Energiesysteme (IKE)
K. Kirchgässner: Universität Stuttgart, Mathematisches Institut A
E. v. Berg: Universität Stuttgart, Institut für Kernenergetik und Energiesysteme (IKE)
M. Bürger: Universität Stuttgart, Institut für Kernenergetik und Energiesysteme (IKE)
G. Pohlner: Universität Stuttgart, Institut für Kernenergetik und Energiesysteme (IKE)
X.-N. Chen: Universität Stuttgart, Mathematisches Institut A
R. Gerling: GKSS Forschungszentrum
G. Reif: Eckart-Werke
H. Meinhardt: Fa. H.C. Starck

A chapter in Mathematik Schlüsseltechnologie für die Zukunft, 1997, pp 59-72 from Springer

Abstract: Abstract The aim of the project has been a process modelling and optimization of metal powder production by gas atomization of molten metal jets, especially for fine particles and narrow particle size distributions. From a fundamental analysis of the flow configuration stability a new mechanism of the jet disintegration based on a resonance phenomenon has been identified. It is concluded that this mechanism should be more effective than those known up to now. However, the disintegration process must be analyzed within the frame of the overall particle loaden flow field of the atomization device. This has been done using the PHOENICS CFD-code after the models of the molten metal jet dynamics and disintegration had been built in. In this modelling the basic feedbacks between near jet flow field and disintegration process are already involved. Despite of some crude simplifications still kept it allows first conclusions on an improved design.

Date: 1997
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DOI: 10.1007/978-3-642-60550-5_6

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