TY - JOUR ID - 85449 TI - Automatic Calibration of Groundwater Models Using Constrained Optimization JO - Journal of Hydraulics JA - JHYD LA - en SN - 2345-4237 AU - Ghafouri, H.R. AU - Bari, B. AD - Y1 - 2008 PY - 2008 VL - 3 IS - 1 SP - 57 EP - 70 DO - 10.30482/jhyd.2008.85449 N2 - Various optimization techniques for automatic calibration of groundwater models have been usedeffectively over past recent years. The present study is another attempt in the same direction throughwhich a new computer model, developed on the basis of optimization technique, is discussed.Throughout the model, the well-known Finite Element Method (FEM) is utilized to discretize andsolve the governing equations of groundwater flow. For the optimization part, Augmented LagrangeMultiplier Method (ALMM) is used to convert the constrained problem to an unconstrained problem,first. Then Davidon-Fletcher-Powell (DFP) optimization technique is utilized to solve the resultedunconstrained problem. The capabilities of the developed model are illustrated by employing anexample. The results show fairly good performance of the model, although some limitations still exist. UR - https://jhyd.iha.ir/article_85449.html L1 - https://jhyd.iha.ir/article_85449_5c9cf08f68557405d92e8d877cb85e4b.pdf ER -