Title :
Hydrogeologic parameters inverse analysis based on pumping test by Comsol Multiphysics and Matlab
Author :
Li, Renmin ; Fang, Lei ; Liu, Songyu
Author_Institution :
Inst. of Geotechnical Eng., Southeast Univ., Nanjing, China
Abstract :
According to the results of the pumping test, the problems of back analysis of Hydrogeologic parameters are changed into the optimization problem of a nonlinear constrained programming. By secondary development tools of Comsol, the M-file script for numerical solution of seepage problems of file has been compiled to achieve the seamless converting of the finite element analysis and Matlab optimization solution and to solve the difficult problem for solution and the problem that the face analysis and back analysis of traditional permeability coefficients are independent. The calculation analysis of samples shows that the algorithm converges very fast and very precise.
Keywords :
constraint handling; finite element analysis; geophysical fluid dynamics; geophysics computing; groundwater; nonlinear programming; pumps; Comsol multiphysics; M-file script; Matlab optimization solution; back analysis; face analysis; finite element analysis; hydrogeologic parameters inverse analysis; nonlinear constrained programming; permeability coefficient; pumping test; secondary development tool; seepage problems; Algorithm design and analysis; Boundary conditions; Constraint optimization; Design optimization; Finite element methods; Optimization methods; Permeability; Testing; Water resources; Water storage; Hydrogeologic parameters; Matlab nonlinear optimization; numerical analysis of COMSOL Multiphysies; parameters back analysis; pumping test; unsteady seepage;
Conference_Titel :
Computer Design and Applications (ICCDA), 2010 International Conference on
Conference_Location :
Qinhuangdao
Print_ISBN :
978-1-4244-7164-5
Electronic_ISBN :
978-1-4244-7164-5
DOI :
10.1109/ICCDA.2010.5541179
