Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Vassilicos, J. Christos"'
Publikováno v:
J. Fluid Mech. 908 (2021) A12
We present a mathematical description of turbulent entrainment that is applicable to free shear problems that evolve in space, time or both. Defining the global entrainment velocity $\overline V_g$ to be the fluid motion across an isosurface of an av
Externí odkaz:
http://arxiv.org/abs/1910.06698
In the present paper, we address the important point of the proportionality between the longitudinal integral lengthscale ($L$) and the characteristic mean flow width ($\delta$) using experimental data of an axisymmetric wake and a turbulent planar j
Externí odkaz:
http://arxiv.org/abs/1811.02444
Assuming perfect collision efficiency, we demonstrate that turbulence can initiate and sustain the rapid growth of very small water droplets in air even when these droplets are too small to cluster, and even without having to take gravity and small-s
Externí odkaz:
http://arxiv.org/abs/1012.0578
Autor:
Soulopoulos, Nikos, Kerl, Johannes, Beyrau, Frank, Hardalupas, Yannis, Taylor, A. M. K. P., Vassilicos, J. Christos
A space-filling, low blockage fractal grid is used as a novel turbulence generator in a premixed turbulent combustion experiment. In contrast to the power law decay of a standard turbulence grid, the downstream turbulence intensity of the fractal gri
Externí odkaz:
http://arxiv.org/abs/1004.2146
This paper is focused on the fundamental mechanism(s) of viscoelastic turbulence that lead to polymer induced turbulent drag reduction phenomenon. A great challenge in this problem is the computation of viscoelastic turbulent flows, since the underst
Externí odkaz:
http://arxiv.org/abs/1003.5331
Publikováno v:
Phys. Rev. E 80, 046306 (2009)
On the basis of various DNS of turbulent channel flows the following picture is proposed. (i) At a height y from the y = 0 wall, the Taylor microscale \lambda is proportional to the average distance l_s between stagnation points of the fluctuating ve
Externí odkaz:
http://arxiv.org/abs/0902.0579
Publikováno v:
In International Journal of Heat and Fluid Flow December 2017 68:269-280
Autor:
Sponfeldner, Thomas, Soulopoulos, Nikolaos, Beyrau, Frank, Hardalupas, Yannis, Taylor, Alex M.K.P., Vassilicos, J. Christos
Publikováno v:
In Combustion and Flame September 2015 162(9):3379-3393
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Akademický článek
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