Continuous-time random-walk approach to normal and anomalous reaction-diffusion processes

Details Continuous-time random-walk approach to normal and anomalous reaction-diffusion processes Continuous-time random-walk approach to normal and anomalous reaction-diffusion processes

2008-03-27

arxiv.org/abs/0803.3892v1

Phys. Rev. E 77, 041115 (2008)

Physics

Condensed Matter

Statistical Mechanics

6 pages, 4 figures

Scientific paper

10.1103/PhysRevE.77.041115

We study the dynamics of a radioactive species flowing through a porous material, within the Continuous-Time Random Walk (CTRW) approach to the modelling of stochastic transport processes. Emphasis is given to the case where radioactive decay is coupled to anomalous diffusion in locally heterogeneous media, such as porous sediments or fractured rocks. In this framework, we derive the distribution of the number of jumps each particle can perform before a decay event. On the basis of the obtained results, we compute the moments of the cumulative particle distribution, which can be then used to quantify the overall displacement and spread of the contaminant species.

Affiliated with

Also associated with

No associations

Rating

Continuous-time random-walk approach to normal and anomalous reaction-diffusion processes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Continuous-time random-walk approach to normal and anomalous reaction-diffusion processes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous-time random-walk approach to normal and anomalous reaction-diffusion processes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-353805