Time resolved measurements of droplet preferential concentration in homogeneous isotropic turbulence without mean flow
نویسندگان
چکیده
منابع مشابه
Droplet size distribution in homogeneous isotropic turbulence
• A submitted manuscript is the author's version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website. • The final author version ...
متن کاملPreferential concentration and rise velocity reduction of bubbles immersed in a homogeneous and isotropic turbulent flow
The behavior of small spherical bubbles immersed in a homogeneous isotropic turbulent carrier flow of a heavier fluid has been experimentally studied. Air bubbles with diameters between 10 and 900 lm were injected in the test section of a horizontal water channel and allowed to interact with the turbulence induced by a grid located at the entrance to the test section. Point measurements of the ...
متن کاملCoagulation-induced particle-concentration fluctuations in homogeneous, isotropic turbulence
The turbulent coagulation of micron-sized colloidal particles in a liquid is controlled by the shearing motion produced by Kolmogorov scale eddies. The rate of energy dissipation has fluctuations which vary over the integral length and time scale in a homogeneous, isotropic turbulent flow. We present a model of the particle concentrations and coagulation rates in a set of fluid packets that are...
متن کاملThe Eulerian Time Correlation Function in Homogeneous Isotropic Turbulence
Two general models are proposed for the Eulerian time correlation function in homogeneous isotropic turbulence. The rst is based on continued fraction approximations to its Laplace transform, and the second is based on random sweeping by a possibly non-Gaussian velocity eld. Both models can give reasonable quantitative agreement with DNS data for moderate time separations over which the time co...
متن کاملSpinodal decomposition in homogeneous and isotropic turbulence.
We study the competition between domain coarsening in a symmetric binary mixture below critical temperature and turbulent fluctuations. We find that the coarsening process is arrested in the presence of turbulence. The physics of the process shares remarkable similarities with the behavior of diluted turbulent emulsions and the arrest length scale can be estimated with an argument similar to th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physics of Fluids
سال: 2019
ISSN: 1070-6631,1089-7666
DOI: 10.1063/1.5063673