000014509 001__ 14509
000014509 005__ 20161115100153.0
000014509 04107 $$aeng
000014509 046__ $$k2016-08-21
000014509 100__ $$aArakeri, Jaywant
000014509 24500 $$aLight propagation through axially homogeneous buoyancy driven turbulence

000014509 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014509 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014509 506__ $$arestricted
000014509 520__ $$2eng$$aFrequency spectra obtained from the measurements of intensity and angle of arrival (AOA), in axially homogeneous buoyancy driven turbulent flow are presented. The highest gradient based Rayleigh number (Rag) in the experiments is about 8><lO9, the Reynolds number based on Taylor microscale (Rex) is 210 and the Schmidt number (Sc) is 605. The measurement techniques used are — Shadowgraphy for intensity measurement, deflections of narrow laser beams for AOA measurements and background oriented schlieren (BOS) in obtaining the displacement fields. All these techniques jointly are used for the first time in this type of study. The spectra of the measured AOAs and intensity are compared respectively with those of displacements (from BOS) and relative intensity (7) derived from displacement fields. The observed asymptotic scalings of the spectra are also compared with the scalings obtained from the theoretical relations from the literature.

000014509 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014509 653__ $$a

000014509 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014509 720__ $$aArakeri, Jaywant
000014509 8560_ $$ffischerc@itam.cas.cz
000014509 8564_ $$s219226$$uhttps://invenio.itam.cas.cz/record/14509/files/TS.FM05-2.02.pdf$$yOriginal version of the author's contribution as presented on CD,  page 723, code TS.FM05-2.02
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000014509 962__ $$r13812
000014509 980__ $$aPAPER