Transport Processes at Taylor Bubbles in Vertical Channels.

• Superior document: Berichte aus dem Institut für Mehrphasenströmungen ; v.8
• Author: Kastens, Sven.
• Place / Publishing House: Göttingen : : Cuvillier Verlag,, 2021.; {copy}2021.
• Year of Publication: 2021
• Edition: 1st ed.
• Language: English
• Series: Berichte aus dem Institut für Mehrphasenströmungen
• Physical Description: 1 online resource (191 pages)

Table of Contents

Intro -- Danksagung -- Table of contents -- List of figures -- List of tables -- Nomenclature -- Abstract -- Zusammenfassung -- Chapter 1 Introduction -- Chapter 2 State of the art and basic knowledge -- 2.1 Gas-liquid flows in channels -- 2.2 Transport processes in bubbly blows -- 2.3 Taylor bubbles -- 2.4 Conclusion, gap of knowledge &amp -- research goal -- Chapter 3 Experimental set-up and procedure -- 3.1 Experimental set-up -- 3.2 Visualization techniques &amp -- procedures -- 3.3 Procedures and experiments -- Chapter 4 Results and discussion -- 4.1 Investigation of global and local fluid dynamics of bubbles in channels -- 4.2 Investigation of global and local mass transfer processes at Taylor bubbles -- 4.3 Comparison of global and local measuring techniques - Bubble volume difference vs. the integration of concentration field -- 4.4 Influence of mixing on mass transfer and chemical reaction -- Chapter 5 Conclusion -- 5.1 Outlook -- References -- Appendix A General parameters and dimensionless numbers of the channels -- Appendix B Absorption and emission spectra of Fluorescein -- Appendix C Settings for PIV and LIF equipment and post processing -- Appendix D Global mass transfer processes of Taylor bubbles in aqueous fluorescein solution -- Appendix E Local fluid dynamics at Taylor bubble front kept in CCF in circular channel D = 6 mm -- Appendix F Local fluid dynamics at small bubble kept in CCF in square channel Dh = 6 mm -- Appendix G Taylor bubbles wakelength lwake = f (ν) in square channel Dh = 6 mm -- Appendix H Local fluid dynamics at clean and contaminated Taylor bubbles in circular channel D = 6 mm -- Appendix I Curriculum Vitae.