Fickian dispersion is anomalous
نویسندگان
چکیده
منابع مشابه
An Analytical Model of Fickian and Non-Fickian Dispersion in Evolving-Scale Log-Conductivity Distributions
The characteristics of solute transport within log-conductivity fields represented by power-law semi-variograms are investigated by an analytical Lagrangian approach that accounts for the automatic frequency cut-off induced by the initial contaminant plume size. The transport process anomaly is critically controlled by the magnitude of the Péclet number. Interestingly enough, unlike the case of...
متن کاملThe hyperpolarizability dispersion of neon is not anomalous
Experimental measurements are presented which show that the anomalous hyperpolarizability dispersion previously observed for neon is spurious. The electric-field-induced second harmonic generation measurements of the hyperpolarizability of neon are now in agreement with the best ab initio results, both in the static limit and at optical frequencies. This experiment gives )+.,== 122.2kO.4 and 12...
متن کاملAnomalous Dispersion in Predictive Rendering
In coloured media, the index of refraction does not decrease monotonically with increasing wavelength, but behaves in a quite non-monotonical way. This behaviour is called anomalous dispersion and results from the fact that the absorption of a material influences its index of refraction. So far, this interesting fact has not been widely acknowledged by the graphics community. In this paper, we ...
متن کاملAnomalous dispersion of Couette-Taylor spirals
Competition of spirals in Couette – Taylor system between counter rotating cylinders leads, for small supercriticality to the formation of localized source. Measuring the group velocity as function of the amplitude, we have determined that waves forming such source have anomalous dispersion, in the sense that phase and linear group velocity of each have opposite signs. Our Couette Taylor system...
متن کاملAbout Non-Fickian Hyperbolic Diffusion
Fick’s law expresses the proportionality of solute flux with respect to concentration gradient. Similar relations are Darcy’s law for the fluid flow in porous media, Ohm’s law for the electric flux and Fourier’s law for heat transfers. When introduced in the corresponding balance equations, these flux laws yield diffusion equations of parabolic character. Different attempts have been made to ob...
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: Journal of Hydrology
سال: 2015
ISSN: 0022-1694
DOI: 10.1016/j.jhydrol.2015.06.036