Ein Verfahren Zur Kopplung Der Smoothed-Particle-Hydrodynamics- Und Der Finite-Volumen-Methode
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Ein Verfahren Zur Kopplung Der Smoothed-Particle-Hydrodynamics- Und Der Finite-Volumen-Methode

Ein Verfahren Zur Kopplung Der Smoothed-Particle-Hydrodynamics- Und Der Finite-Volumen-Methode


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About the Book

Beim Einsatz flussigen Kraftstoffs in Gasturbinen sind der Verbrennung komplexe zweiphasige Stromungsprozesse vorgelagert. Hier ist insbesondere die Primarzerstaubung des Kraftstoffs zu nennen. Mit der Smoothed-Particle-Hydrodynamics(SPH)-Methode kann die Primarzerstaubung detailliert simuliert werden. Dieser Ansatz ist aufgrund seines hohen Berechnungsaufwands zurzeit jedoch auf kleine raumliche Bereiche begrenzt, wodurch die Kopplung mit den umgebenden Stromungsprozessen, die ohnehin effizienter und genauer mit der Finite-Volumen(FV)-Methode zu berechnen sind, eingeschrankt ist. Es ist daher erstrebenswert, detaillierte SPH-basierte Zerstaubungssimulationen in FV-Simulationen der umgebenden Stromung einzubetten. Dieser Forschungsbericht befasst sich mit der Entwicklung eines solchen hybriden Ansatzes zur direkten Kopplung von SPH- und FV-Rechengebieten. Der Ansatz wird hinsichtlich grundlegender numerischer Aspekte, wie der Massenerhaltung, sorgfaltig beleuchtet und optimiert. Die Aufpragung von Rand- und Kopplungsbedingungen wird vereinheitlicht, wobei auch weitere Verbesserungen fur Randbedingungen eingefuhrt werden. Durch geeignete Testfalle wird die Anwendbarkeit der Kopplungsschnittstelle auf brennkammertypische Stromungseigenschaften, wie Rezirkulation und signifikante Instationaritat, demonstriert. Hierdurch werden somit wichtige Voraussetzungen zur Weiterentwicklung des Verfahrens fur turbulente und mehrphasige Stromungen sowie technische Geometrien geschaffen.


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Product Details
  • ISBN-13: 9783832556891
  • Publisher: Logos Verlag Berlin
  • Binding: Paperback
  • No of Pages: 273
  • Weight: 326 gr
  • ISBN-10: 3832556893
  • Publisher Date: 14 Sep 2023
  • Language: German
  • Returnable: N


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