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Deriving forces from 2D velocity field measurements

Autor
Albrecht, T.; Del Campo, V.; Weier, T.; Metzkes, H.; Stiller, J.
Tipus d'activitat
Article en revista
Revista
European physical journal. Special topics
Data de publicació
2013-03-26
Volum
220
Número
1
Pàgina inicial
91
Pàgina final
100
DOI
https://doi.org/10.1140/epjst/e2013-01799-9 Obrir en finestra nova
URL
http://link.springer.com/article/10.1140%2Fepjst%2Fe2013-01799-9 Obrir en finestra nova
Resum
We discuss how to derive a force or a force density from a measured velocity field. The first part focuses on the integral force a fluid exerts on a body, e.g. lift and drag on an airfoil. Obtaining the correct pressure is crucial; however, it cannot be measured within the flow non-intrusively. Using numerical and experimental test cases, we compare the accuracy achievable with three methods: pressure reconstruction from velocity fields via (1) the differential momentum equation, or (2) the Pois...

Participants

  • Albrecht, Thomas  (autor)
  • Del Campo Gatell, Vanessa  (autor)
  • Weier, Tom  (autor)
  • Metzkes, Hans  (autor)
  • Stiller, Jörg  (autor)