TY - JOUR
T1 - A Subregion Block Iteration to 3-D Finite Element Modeling of Subsurface Flow
AU - Yeh, G. T.
N1 - Funding Information:
This research is supported by the Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee. ESD Publication No. 3064.
PY - 1988/1
Y1 - 1988/1
N2 - A subregion block iteration (SBI) technique has been developed in conjunction with finite element approximations of saturated-unsaturated flow equations. The proposed SBI technique is implemented in a three-dimensional finite element saturated-unsaturated flow model. The model is verified with a nonlinear diffusion equation having an analytical solution. It is then applied to a burial trench problem. It is not possible to solve this field problem using the direct elimination finite element method. The SBI technique provides significant improvement over models based on direct band solution methods in both central processing unit (CPU) storage and CPU time.
AB - A subregion block iteration (SBI) technique has been developed in conjunction with finite element approximations of saturated-unsaturated flow equations. The proposed SBI technique is implemented in a three-dimensional finite element saturated-unsaturated flow model. The model is verified with a nonlinear diffusion equation having an analytical solution. It is then applied to a burial trench problem. It is not possible to solve this field problem using the direct elimination finite element method. The SBI technique provides significant improvement over models based on direct band solution methods in both central processing unit (CPU) storage and CPU time.
UR - http://www.scopus.com/inward/record.url?scp=77957015646&partnerID=8YFLogxK
U2 - 10.1016/S0167-5648(08)70329-0
DO - 10.1016/S0167-5648(08)70329-0
M3 - 期刊論文
AN - SCOPUS:77957015646
SN - 0167-5648
VL - 35
SP - 133
EP - 138
JO - Developments in Water Science
JF - Developments in Water Science
IS - C
ER -