Analysis of multiple well systems | |
| Author | Malla, Dinesh B. |
| Call Number | AIT Thesis no. WA-84-13 |
| Subject(s) | Wells Water, Underground |
| Note | A thesis 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 | Analytical models have been used to analyze the flow to a multiple well system fully or partially penetrating an aquifer . Selected patterns of well arrangements for the analysis are : wells located in a straight line , two straight lines, three straight lines, square pattern, and staggered pattern . The aquifer is considered to be homogeneous of infinite extent with an isotropic as well as an anisotropic distribution of the hydraulic conductivity. The principle of superposition is used to combine the effect of wells, and the solutions are obtained by using a micro- computer to evaluate the well function in respective solutions. The equivalent well radius and t he coefficient of interference are determined for the case of fully penetrating wells. The analysis is extended to the case of a stream aquifer system to determine the rate of stream depletion when the bed of the stream is pervious to the same extent as the aquifer as well as for a relatively semipervious bed. Also for aquifers with fresh water overlying salt water the unsteady upcoming of the interface between the fresh water a nd salt water due to pumping from the fresh water region has been considered to find the permissible rate of pumping by a single well or multiple well systems without exceeding the critical extent of upcoming. The results of the analysis for all cases considered are presented in dimensionless plots which can be readily used for an initial design of the well system for water withdrawal . The selection of the appropriate rate of pumping for individual wells in a system with the limitation of drawdown or the solution of appropriate spacing of the wells in a system to meet certain pumping requirements a long with the limitation of drawdown can be appraised using these dimensionless plots. |
| Year | 1983 |
| Type | Thesis |
| 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) | Christoph, Ing. Fried ; Rahman, Md. Ataur |
| Scholarship Donor(s) | Carl Duisberg Gesellschaft, Fed. Rep. of Germany |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1983 |