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| rdf:type
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| Description
| - The contribution presents results of optical measurements of flow field around a vibrating double circular arc (DCA) 18% profile elastically supported in the measurement section of a wind tunnel. The profile can vibrate with two degrees of freedom for translation and rotation. the schlieren and interferometry methods were used for visualization of a two-dimensional flow in different phase of the profile motion. The measurements were performed in a subsonic wind tunnel above the airflow velocity for loss of the system stability by flutter, thus the vibration amplitudes were relatively large up to about+-4mm for vertical translation and +-6 degrees for angle of rotation around the elastic axis. The images of the flow field were recorded for prescribed phase delays during one oscillation period of the profile from which the pressure and velocity were evaluated in given time instants.
- The contribution presents results of optical measurements of flow field around a vibrating double circular arc (DCA) 18% profile elastically supported in the measurement section of a wind tunnel. The profile can vibrate with two degrees of freedom for translation and rotation. the schlieren and interferometry methods were used for visualization of a two-dimensional flow in different phase of the profile motion. The measurements were performed in a subsonic wind tunnel above the airflow velocity for loss of the system stability by flutter, thus the vibration amplitudes were relatively large up to about+-4mm for vertical translation and +-6 degrees for angle of rotation around the elastic axis. The images of the flow field were recorded for prescribed phase delays during one oscillation period of the profile from which the pressure and velocity were evaluated in given time instants. (en)
- Příspěvek se zabývá optickým měřením proudění kolem viburujícího 18% dvoukruhového profilu elasticky uloženého v měřícím prostoru aerodynamického tunelu. Profil může vibrovat se dvěma stupni volnosti, translace a rotace. K měření byly použity metody šlírova a interferometrická, které umožnily vizualizaci 2D proudění v různých fázích pohybu profilu. Měření byla provedena v subsonickém aerodynamickém tunelu při rychlostech vyšších než kritická rychlost flutteru, takže amplitudy vibrací byly relativně velké, až plus mínus 4mm pro translaci a plus mínus 6 stupňů pro rotaci profilu kolem elastické osy. Obrázky proudového pole byly zaznamenány pro předepsaná fázová zpoždění během jedné periody oscilací . Z těchto snímků byly pak vyhodnoceny tlaky a rychlosti proudění v daných časových okamžicích. (cs)
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| Title
| - Visualization of unsteady flow around a vibrating profile
- Visualization of unsteady flow around a vibrating profile (en)
- Vizualizace nestacionárního proudění kolem vibrujícího profilu (cs)
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| skos:prefLabel
| - Visualization of unsteady flow around a vibrating profile
- Visualization of unsteady flow around a vibrating profile (en)
- Vizualizace nestacionárního proudění kolem vibrujícího profilu (cs)
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| skos:notation
| - RIV/61388998:_____/08:00310505!RIV09-AV0-61388998
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
| - P(IAA200760613), Z(AV0Z20760514)
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/61388998:_____/08:00310505
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - aeroelasticity; flutter; schlieren and interferomety methods (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...v/mistoKonaniAkce
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| http://linked.open...i/riv/mistoVydani
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| http://linked.open...i/riv/nazevZdroje
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...iv/tvurceVysledku
| - Horáček, Jaromír
- Veselý, Jan
- Luxa, Martin
- Vlček, Václav
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| http://linked.open...vavai/riv/typAkce
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| http://linked.open.../riv/zahajeniAkce
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| http://linked.open...n/vavai/riv/zamer
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| number of pages
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| http://purl.org/ne...btex#hasPublisher
| - Institute of Thermomechanics, Academy of Sciences of the Czech Republic, v. v. i.
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| https://schema.org/isbn
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