Odenthal, Hans-Jürgen ; Vogl, Norbert ; Brune, Tobias ; Apell, Niklas ; Tropea, Cameron ; Roisman, Ilia V.
Hrsg.: Wu, Menghuai (2021)
Recent modeling approaches to close-coupled atomization for powder production.
STEELSIM 2021. Virtual Event (05. - 07.10.2021)
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
Additive manufacturing requires high quality, monodisperse metal powder with spherical particles of definite size. For plant operation, it is important to better understand the atomization process, i.e., to determine the influence of the operating parameters such as the nozzle type, melt throughput or gas flow rate on the particle size. This project with partners from India and Germany is being funded by the Indo-German Science & Technology Center (IGSTC) with support from the German Federal Ministry of Education and Research (BMBF) and builds on a coupled approach of experiments, numerical simulations and plant operation to develop models and design powder production guidelines. The basis is a production plant that operates according to the close-coupled atomization (CCA) principle and produces, for instance, austenitic and nickel based steel powder. The CCA nozzle system has been replicated in a full-scale research facility, i.e., the plant conditions are reproduced using water and air as fluids, satisfying most dimensionless numbers. This enables an investigation of the macroscopic interaction between shock/expansion waves and water flow using focusing Schlieren optics and high-speed imaging; the droplets are characterized using the phase Doppler measurement technique. Parallel to the experimental work, CFD models are being developed to predict the behavior of the droplets following the atomization as well as the liquid/gas interaction and droplet solidification.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2021 |
| Herausgeber: | Wu, Menghuai |
| Autor(en): | Odenthal, Hans-Jürgen ; Vogl, Norbert ; Brune, Tobias ; Apell, Niklas ; Tropea, Cameron ; Roisman, Ilia V. |
| Art des Eintrags: | Bibliographie |
| Titel: | Recent modeling approaches to close-coupled atomization for powder production |
| Sprache: | Englisch |
| Publikationsjahr: | 7 Oktober 2021 |
| Ort: | Vienna, Austria |
| Verlag: | ASMET (Austrian Society for Metallurgy and Materials) |
| Buchtitel: | STEELSIM 2021 - 9th International Conference on Modeling and Simulation of Metallurgical Processes in Steelmaking, 05-07 October 2021, Virtual Conference |
| Veranstaltungstitel: | STEELSIM 2021 |
| Veranstaltungsort: | Virtual Event |
| Veranstaltungsdatum: | 05. - 07.10.2021 |
| Kurzbeschreibung (Abstract): | Additive manufacturing requires high quality, monodisperse metal powder with spherical particles of definite size. For plant operation, it is important to better understand the atomization process, i.e., to determine the influence of the operating parameters such as the nozzle type, melt throughput or gas flow rate on the particle size. This project with partners from India and Germany is being funded by the Indo-German Science & Technology Center (IGSTC) with support from the German Federal Ministry of Education and Research (BMBF) and builds on a coupled approach of experiments, numerical simulations and plant operation to develop models and design powder production guidelines. The basis is a production plant that operates according to the close-coupled atomization (CCA) principle and produces, for instance, austenitic and nickel based steel powder. The CCA nozzle system has been replicated in a full-scale research facility, i.e., the plant conditions are reproduced using water and air as fluids, satisfying most dimensionless numbers. This enables an investigation of the macroscopic interaction between shock/expansion waves and water flow using focusing Schlieren optics and high-speed imaging; the droplets are characterized using the phase Doppler measurement technique. Parallel to the experimental work, CFD models are being developed to predict the behavior of the droplets following the atomization as well as the liquid/gas interaction and droplet solidification. |
| Freie Schlagworte: | Additive manufacturing, close-coupled atomization, CFD, water model, metal powder |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet Strömungslehre und Aerodynamik (SLA) |
| Hinterlegungsdatum: | 11 Apr 2023 05:12 |
| Letzte Änderung: | 11 Apr 2023 05:12 |
| PPN: | |
| Projekte: | IGSTC PPAM |
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