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                                       Details van artikel 8 van 33 gevonden artikelen
 
 
  Interacting Wakes of Two Normal Flat PlatesAn investigation based on phase averaging of LDA signals
 
 
Titel: Interacting Wakes of Two Normal Flat PlatesAn investigation based on phase averaging of LDA signals
Auteur: Auteri, F.
Belan, M.
Cassinelli, C.
Gibertini, G.
Verschenen in: Journal of visualization
Paginering: Jaargang 12 (2009) nr. 4 pagina's 307-321
Jaar: 2009-10-27
Inhoud: The flow around two bluff bodies in tandem is an interesting phenomenon whose nature strongly depends on the distance between the bodies. In this work oil smoke visualizations of the flow around two normal flat plates in tandem configuration are compared with phase averaged Laser Doppler Anemometry measurements of the flow field for a full period. Phase averaging is exploited to resolve the mean time evolution of the flow and the signal from a single constant temperature hot wire probe is employed as phasing reference. The flow-field information obtained from visualizations agrees well with quantitative indications provided by measures, and the comparison allows to precisely understand what information can be extracted from simple visualizations. As a result, new insight in flow mechanism is obtained from the analysis of the flow data showing that, for the analyzed plate distance, the gap between the two plates behaves substantially as a cavity while the vortex formation process takes place in the wake region behind the aft plate.
Uitgever: IOS Press
Bronbestand: Elektronische Wetenschappelijke Tijdschriften
 
 

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