Radko Petkov National Institute of Meteorology and Hydrology, Bulgarian Academy of Sciences, Sofia, Bulgaria radolili@yahoo.com   Abstract At present mankind has faced more seriously than ever the problem of environmental protection. Under the conditions of the contemporary stage of social-economic development, the optimal solution of this issue is possible if environmentally friendly technologies are designed […]

2010-362 NUMERICAL SOLUTION OF 3-D PROBLEMS IN POROUS MEDIA REGARDING THE RETARDATION FACTOR  Radko Petkov 11 Institute of Water Problems, Bulgarian Academy of Sciences, Bulgaria Abstract:The paper considers the development of a new method of diffuse pollution modeling. A hydrodynamic model for the movement of soluble active admixtures in pressure and non-pressure flows through porous […]

375 – Determining the coefficients of filtration dispersion in anisotropic homogeneous porous medium   Radko Petkov Institute of Water Problems – Bulgarian academy of SciencesSofia 1113, Acad. G. Bonchev St., Block 1   Abstract   The aim of this work is to present a method for determining the tensor of dispersion coefficients in anisotropic homogeneous […]

A-338 : Ecolo-economic optimization of the location of Sources Polluting Groundwater      Radko Petkov  Institute of Water Problems  Bulgarian Academy of Sciences  Akad. G.Bontchev Streer, Block 1    radolili@yahoo.com           Abstract     The world community has set fourth and faced the task of preserving and reproducing the environment. The optimal […]