000014752 001__ 14752
000014752 005__ 20161115100201.0
000014752 04107 $$aeng
000014752 046__ $$k2016-08-21
000014752 100__ $$aDodd, Michael, S.
000014752 24500 $$aEffects of viscosity ratio on droplet-laden isotropic turbulence

000014752 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014752 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014752 506__ $$arestricted
000014752 520__ $$2eng$$aWe performed direct numerical simulation (DNS) of droplet-laden isotropic turbulence. We released 3130 non-evaporating droplets of diameter approximately equal to the Taylor lengthscale (corresponding to 5% droplet volume fraction) in decaying isotropic turbulence at initial Taylor-scale Reynolds number Re; : 83. We studied four cases: one single-phase case and three droplet-laden cases in which we varied the droplet- to carrier-fluid viscosity ratio (1 3 ,ad /,ac S 100). We first derived the turbulence kinetic energy (TKE) equations for the two-fluid, carrier-fluid and droplet-fluid flow. This allows us to explain the pathways for TKE exchange between the turbulent flow of the carrier fluid and the flow inside the droplet. Then, we analyze the effects of varying [id/[LC on the turbulent kinetic energy budget of the carrier fluid, the droplet fluid and the two fluids, and, finally, we explain the underlying physical mechanisms for their modulation.

000014752 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014752 653__ $$a

000014752 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014752 720__ $$aDodd, Michael, S.
000014752 8560_ $$ffischerc@itam.cas.cz
000014752 8564_ $$s174527$$uhttps://invenio.itam.cas.cz/record/14752/files/TS.FM14-6.03.pdf$$yOriginal version of the author's contribution as presented on CD,  page 1457, code TS.FM14-6.03
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000014752 962__ $$r13812
000014752 980__ $$aPAPER