| Author | Dawar, Praveen |
| Call Number | AIT RSPR no. WA-85-04 |
| Subject(s) | Aquifers--Mathematical models
|
| Note | A research study submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | An algorithm for the Walton solution of pumping test data has been developed taking into account the basic principles of graphical approach of curve-matching. The method is simple and does not need initial approximation of transmissivity and storage coefficient and leakage factor as required by approaches suggested by Chander et al. (1981) and
Cobb et al. (1982). As a measure of error of fitting, integral square
error is computed between the observed drawdown and drawdown calculated
from the theoretical equation with the values of coefficients estimated by the procedure. Also root mean square deviation in drawdown is calculated. The reliability of the algorithm and its limitations are discussed on the basis of test runs with synthetic data having varying
magnitudes of error and varying distributions of error points in the data set. The estimates of parameters by the proposed algorithm for a field test data taken from Walton (1970) compare very well with the
estimates by the sensitivity approach developed by Cobb et al. (1982) and the synthetic data prepared from Freeze and Cherry (1979 ). When applied to field data obtained from Sukhothai province , the algorithm worked satisfactorily and the formation constants were obtained. |
| Year | 1984 |
| Type | Research Study Project Report (RSPR) |
| School | School of Engineering and Technology |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Water Resources Research Engineering (WA) |
| Chairperson(s) | Gupta, Ashim Das
; |
| Examination Committee(s) | Huynh, Ngoc Phien ;Rahman, Md. Ataur
; |
| Scholarship Donor(s) | Government of France; |
| Degree | Research Studies Project Report (M. Eng.) - Asian Institute of Technology, 1984 |