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Deformation and ini...
Deformation and initial breakup morphology of viscous emulsion drops in isotropic homogeneous turbulence with relevance for emulsification devices
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- Håkansson, Andreas (författare)
- Lund University,Lunds universitet,Avdelningen för livsmedel och läkemedel,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Division of Food and Pharma,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH
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- Brandt, Luca (författare)
- KTH Royal Institute of Technology,KTH,Linné Flow Center, FLOW,Strömningsmekanik och Teknisk Akustik,Norwegian Univ Sci & Technol NTNU, Dept Energy & Proc Engn, Trondheim, Norway.,Norwegian University of Science and Technology
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(creator_code:org_t)
- Elsevier BV, 2022
- 2022
- Engelska.
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Ingår i: Chemical Engineering Science. - : Elsevier BV. - 0009-2509 .- 1873-4405. ; 253
- Relaterad länk:
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Abstract
Ämnesord
Stäng
- This study uses numerical experiments to investigate initial breakup morphology for conditions similar to those experienced in an emulsification device (e.g., a high-pressure homogenizer) (Rek = 33, We = 1-30, mu D/mu C = 22, PD/PC = 0.9, D/ri = 22). Results show breakup consisting of two phases: and 'oscillatory phase' where the drops are periodically deforming and relaxing, followed by a 'critical deformation phase' where the drop deforms continuously until initial breakup. Large drops (We > 13) go directly to the breakup phase and are highly deformed in multiple direction before bursting. Smaller drops (3 < We < 5) are less likely to go directly to the critical deformation phase and more likely to never reach it before exiting the device. These drops break by the formation of a single filament, creating two large fragments and a number of smaller satellites. Several turbulent structures contribute to critical deformation.
Ämnesord
- SAMHÄLLSVETENSKAP -- Annan samhällsvetenskap -- Tvärvetenskapliga studier inom samhällsvetenskap (hsv//swe)
- SOCIAL SCIENCES -- Other Social Sciences -- Social Sciences Interdisciplinary (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Teknisk mekanik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Applied Mechanics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Annan teknik -- Livsmedelsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Other Engineering and Technologies -- Food Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Strömningsmekanik och akustik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Fluid Mechanics and Acoustics (hsv//eng)
Nyckelord
- Emulsification
- DNS
- Drop breakup
- Fragmentation
- Turbulence
- High-pressure homogenizer
- DNS
- Drop breakup
- Emulsification
- Fragmentation
- High-pressure homogenizer
- Turbulence
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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