Zobrazeno 1 - 10
of 94
pro vyhledávání: '"G, Grünefeld"'
Publikováno v:
Nonlinear Processes in Geophysics, Vol 11, Iss 3, Pp 343-350 (2004)
We discuss a new phenomenon of turbulent thermal diffusion associated with turbulent transport of aerosols in the atmosphere and in laboratory experiments. The essence of this phenomenon is the appearance of a nondiffusive mean flux of particles in t
Externí odkaz:
https://doaj.org/article/6e281133f5eb43318af7523a780ecf19
Akademický článek
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Autor:
G. Grünefeld, S. Wissel
Publikováno v:
Applied Physics B. 83:181-184
The velocities of both the liquid and the gaseous phases in a diesel spray are determined for the first time simultaneously via laser flow tagging (LFT). The experimental setup and uncertainties introduced by seeding particles in the gas phase are gr
Autor:
Tov Elperin, G. Grünefeld, A. Krein, Nathan Kleeorin, J. Buchholz, A. Eidelman, Igor Rogachevskii
Publikováno v:
Experiments in Fluids. 36:879-887
We have experimentally detected a new effect, turbulent thermal diffusion, as predicted theoretically by Elperin et al. (Phys Rev Lett (1996) 76:224–228) and associated with the turbulent transport of inertial particles. The essence of this effect
Akademický článek
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Publikováno v:
Experiments in Fluids. 29:322-330
The feasibility of simultaneous measurements of the instantaneous velocity fields of gaseous and liquid phase is demonstrated in a laminar, unsteady two-phase flow. Thus, the instantaneous relative velocity field can be measured in such media. This i
Autor:
G. Grünefeld, S. Krüger
Publikováno v:
Applied Physics B: Lasers and Optics. 71:611-615
The feasibility of liquid-phase velocity measurements in dense sprays by 2D laser-based flow tagging is demonstrated. Velocity measurements in dense sprays are difficult with conventional techniques because of the high number densities of droplets, t
Publikováno v:
Experiments in Fluids. 29:238-246
A laser-based technique is presented that can be used to measure the instantaneous velocity field of the continuous phase in sprays and aerosols. In contrast to most well established laser-based velocity measurement techniques, this method is indepen
Autor:
G. Grünefeld, S. Krüger
Publikováno v:
Applied Physics B. 70:463-466
It is demonstrated in this work that gas-phase velocity measurements can be performed in dense sprays by using a new 2D laser-based flow tagging technique. Velocity measurements in dense sprays, such as automotive direct injection (DI) Otto and Diese