Investigation of Pressure Drop and Dynamic Instabilities in Two-phase Flow
eBook - PDF

Investigation of Pressure Drop and Dynamic Instabilities in Two-phase Flow

,
  1. 180 pages
  2. English
  3. PDF
  4. Available on iOS & Android
eBook - PDF

Investigation of Pressure Drop and Dynamic Instabilities in Two-phase Flow

,

About this book

Zweiphasenströmungen, insbesondere Wasser/Dampf-Strömungen, sind fĂŒr die Auslegung und den Betrieb thermohydraulischer Systeme nach wie vor von großem Interesse. Diese Arbeit befasst sich mit der Untersuchung des Druckverlustes und dynamischer InstabilitĂ€ten (hier Dichtewellenoszillationen) in Wasser/Dampf-Strömungen mittels zweier unterschiedlicher AnsĂ€tze unter praxisnahen Bedingungen. Zum einen wird ein Versuchsstand entwickelt, aufgebaut und in Betrieb genommen, um mit diesem entsprechende Versuche an einem Verdampferrohr durchzufĂŒhren. Zum anderen werden dynamische Simulationen mit einem homogenen ("mixture flow") und einem heterogenen ("two-fluid") Strömungsmodell durchgefĂŒhrt und miteinander und mit den Messdaten verglichen. Die experimentellen und numerischen Ergebnisse lassen sich schließlich in dimensionslosen StabilitĂ€tskarten zusammenfassen, welche die Betriebsgrenzen beschreiben, bei denen Dichtewellenoszillationen in thermohydraulisch Ă€hnlichen Systemen auftreten können.

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Information

Publisher
Cuvillier Verlag
Year
2020
Print ISBN
9783736973268
eBook ISBN
9783736963269
Edition
1

Table of contents

  1. Preface
  2. Kurzzusammenfassung
  3. Abstract
  4. Chapter 1 Introduction
  5. 1.1 Motivation
  6. 1.2 State-of-the-art
  7. 1.3 Objectives
  8. 1.4 Publications and contributions associated with thisresearch work
  9. Chapter 2 Background
  10. 2.1 Two-phase flow basics
  11. 2.2 Two-phase flow instabilities
  12. Chapter 3 Two-phase flow test rig
  13. 3.1 Design of the test rig
  14. 3.2 Commissioning of the test rig
  15. Chapter 4 Dynamic simulation of two-phase flow
  16. 4.1 Mathematical modeling of two-phase flow
  17. 4.2 Numerical solution method of the APROS simulationsoftware
  18. 4.3 Modeling
  19. Chapter 5 Experimental results
  20. 5.1 Experimental procedure and operating points
  21. 5.2 Steady-state pressure drop
  22. 5.3 Density wave oscillations
  23. Chapter 6 Dynamic simulation results
  24. 6.1 Steady-state pressure drop
  25. 6.2 Density wave oscillations
  26. Chapter 7 Conclusion and Outlook