the Major State Basic Research Program of China(No.G1999032803);the National Tackling Key Problems Program(No.20050200069);the National Natural Sciences Foundation of China(Nos.10771124,10372052);the Ph.D.Program Foundation of Ministry of Education of China(No.20030422047)
For the three-dimensional nonlinear two-phase displacement problem, the modified upwind finite difference fractional steps schenles were put forward. Some techniques, such as calculus of variations, induction hypothes...
Supported bythe Major State Basic Research of China(Grant No.G1999032803),the National Natural Science Foundation of China (Grant No.10372052,10271066)and the Doctorate Foundation of the Ministry of Education of China(Grant No.20030422047).