Continuous time random walks for the evolution of Lagrangian particle velocities in heterogeneous porous and fractured media flows

Marco Dentz, IDAEA-CSIC, Institute of Enviromental Assessment and Water Research, Barcelona, Spain, Barcelona, Spain, Peter K Kang, University of Minnesota Twin Cities, Department of Earth and Environmental Sciences, Minneapolis, United States, Alessandro Comolli, IDAEA-CSIC, Barcelona, Spain, Tanguy Le Borgne, University of Rennes 1, Géosciences Rennes UMR 6118, Rennes, France and Daniel Robert Lester, RMIT University, Melbourne, VIC, Australia