Probability density function of turbulent velocity fluctuations
نویسندگان
چکیده
منابع مشابه
Application of the velocity-dissipation probability density function model to inhomogeneous turbulent flows
Recently Pope and Chen [ Phys. Fluids A 2, 1437 ( 1990) ] developed a turbulence model based on the one-point Eulerian joint probability density function (pdf) of velocity and dissipation. The modeling is performed by constructing stochastic processes for the velocity and dissipation following fluid particles. In the original work, these models were constructed by reference to the known statist...
متن کاملIn-Vivo Quantification of Turbulent Velocity Fluctuations
P. Dyverfeldt, J-P. E. Kvitting, A. Sigfridsson, J. Engvall, A. F. Bolger, and T. Ebbers Department of Clinical Physiology, Linköping University, Linköping, Sweden, Center for Medical Image Science and Visualization (CMIV), Linköping University, Linköping, Sweden, Department of Cardiothoracic Surgery, Linköping University Hospital, Linköping, Sweden, Department of Medicine, University of Califo...
متن کاملProbability density functions of turbulent velocity and temperature in the atmospheric surface layer
The probability density functions (pdf’s) for the longitudinal and vertical velocities, temperature, their derivatives, and momentum and sensible heat fluxes were measured in the atmospheric surface layer for a wide range of atmospheric stability conditions. The measured pdf’s for both the velocity and the temperature fluctuations are near-Gaussian and consistent with corresponding laboratory m...
متن کاملA new probability density function in earthquake occurrences
Although knowing the time of the occurrence of the earthquakes is vital and helpful, unfortunately it is still unpredictable. By the way there is an urgent need to find a method to foresee this catastrophic event. There are a lot of methods for forecasting the time of earthquake occurrence. Another method for predicting that is to know probability density function of time interval between earth...
متن کاملZero crossings of velocity fluctuations in turbulent boundary layers
In this paper some results are presented on the statistical properties of zero crossings of turbulent velocity fluctuations in boundary layers over a wide range of Reynolds numbers. The earlier finding that the probability density function (pdf) of the intervals between successive zero crossings of the streamwise velocity fluctuation u can be approximated by two exponentials, ,* each with its o...
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: Physical Review E
سال: 2002
ISSN: 1063-651X,1095-3787
DOI: 10.1103/physreve.65.056304