000013911 001__ 13911
000013911 005__ 20161115094005.0
000013911 04107 $$aeng
000013911 046__ $$k2016-08-21
000013911 100__ $$aAdachi, Shizuko
000013911 24500 $$aLagrangian analysis of energy conversion in the taconis oscillations

000013911 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000013911 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000013911 506__ $$arestricted
000013911 520__ $$2eng$$aEnergy conversion in the Taconis oscillations is numerically studied from the Lagrangian point of view. By solving the axisymmetric compressible Navier-Stokes equations, spontaneous thermoacoustic oscillations in a closed cylindrical tube are observed when a strong temperature gradient is imposed along the tube axis. The ratio of the high wall temperature near both ends of the tube to the low wall temperature of the central part is fixed at 15. Temporal evolution of dynamical and thermodynamical properties of fluid particles in the fundamental mode oscillation of a standing wave and the second mode oscillation is obtained from the field data. The state of the fluid particle is represented on a pressure-volume diagram. Fluid particles moving near the tube end perform a nearly cyclic transformation in both modes. When displacement of fluid particles is large, a regular pattern is not found on a pressure-volume diagram.

000013911 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013911 653__ $$a

000013911 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000013911 720__ $$aAdachi, Shizuko
000013911 8560_ $$ffischerc@itam.cas.cz
000013911 8564_ $$s163189$$uhttps://invenio.itam.cas.cz/record/13911/files/PO.FM07-1.02.118.pdf$$yOriginal version of the author's contribution as presented on CD, XMLout( page 991, code PO.FM07-1.02.118).
000013911 962__ $$r13812
000013911 980__ $$aPAPER