Geodesic
Numerical model of the two-phase medium weak compressible matrix and some geophysical applications
Dalʹnevostočnyj matematičeskij žurnal, Tome 7 (2007) no. 1, pp. 79-90

Voir la notice de l'article provenant de la source Math-Net.Ru

Since the Boussinesq approximation cannot be applicable to model accumulation of a liquid phase (fluid) within a matrix the numerical model of two-phase medium with weak compressible matrix has been developed. Because of weak compressibility there is a lot of computational difficulties to solve the system of equations by a numerical method with sufficient accuracy. Therefore it has been obtained an asymptotical solution including the Boussinesq approximation as zero-order one. The finite element technique combined with the modified project gradient method is applied to obtain numerical solution for zero-order and following approximations. This method has considerable advantages in accuracy, stability and speed of response in comparison with penalty method and modified Lagrange function method. There has been fulfilled numerical modeling of a fluid accumulation within compressible matrix affected by the upper boundary's relief and variation of the fluid flow's distribution on the lower boundary. The model shear strain field are shown to be different in comparison with Boussinesq approximation. Some features of shear strain distribution have been studied analytically. Several geophysical applications of these model results is presented. 
@article{DVMG_2007_7_1_a7,
     author = {V. V. Pack},
     title = {Numerical model of the two-phase medium weak compressible matrix and some geophysical applications},
     journal = {Dalʹnevosto\v{c}nyj matemati\v{c}eskij \v{z}urnal},
     pages = {79--90},
     publisher = {mathdoc},
     volume = {7},
     number = {1},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DVMG_2007_7_1_a7/}
}
TY  - JOUR
AU  - V. V. Pack
TI  - Numerical model of the two-phase medium weak compressible matrix and some geophysical applications
JO  - Dalʹnevostočnyj matematičeskij žurnal
PY  - 2007
SP  - 79
EP  - 90
VL  - 7
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DVMG_2007_7_1_a7/
LA  - ru
ID  - DVMG_2007_7_1_a7
ER  - 
%0 Journal Article
%A V. V. Pack
%T Numerical model of the two-phase medium weak compressible matrix and some geophysical applications
%J Dalʹnevostočnyj matematičeskij žurnal
%D 2007
%P 79-90
%V 7
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DVMG_2007_7_1_a7/
%G ru
%F DVMG_2007_7_1_a7
V. V. Pack. Numerical model of the two-phase medium weak compressible matrix and some geophysical applications. Dalʹnevostočnyj matematičeskij žurnal, Tome 7 (2007) no. 1, pp. 79-90. http://geodesic.mathdoc.fr/item/DVMG_2007_7_1_a7/