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- Title
Flow-measurements in the wake of an oscillating sessile droplet using laser-Doppler velocity profile sensor.
- Authors
Burgmann, Sebastian; Krämer, Veronika; Dues, Michael; Steinbock, Jonas; Büttner, Lars; Czarske, Juergen; Janoske, Uwe
- Abstract
The shift frequencies HT <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="italic">f</mi><mi mathvariant="italic">S</mi></msub></math> ht are 3 MHz and 5 MHz, respectively. This is achieved by the fact that for each time step a contact angle increment HT <math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="italic"> </mi><mi mathvariant="italic"> </mi></math> ht at the wall is calculated that depends on the contact line velocity HT <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="italic">u</mi><mtext>CL</mtext></msub></math> ht acting at the previous time step. Depending on the flight direction of the particle passing the fringe pattern, the detected Doppler frequency HT <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="italic">f</mi><mi mathvariant="italic">D</mi></msub></math> ht changes. In the next time step the contact angle changes by HT <math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="italic"> </mi><mi mathvariant="italic"> </mi></math> ht .
- Subjects
CONTACT angle; BOUNDARY layer (Aerodynamics); VELOCITY; REYNOLDS number; CONVOLUTIONAL neural networks; TURBULENT shear flow; COMPUTATIONAL fluid dynamics; OPTICAL phase conjugation
- Publication
Technisches Messen, 2022, Vol 89, Issue 3, p178
- ISSN
0171-8096
- Publication type
Article
- DOI
10.1515/teme-2021-0119