| Author | Nguyen Ngoc An |
| Call Number | AIT Thesis no. WA-89-14 |
| Subject(s) | Hydraulics--Mathematical models
|
| Note | A thesis submitted in partial fulfillment of the requirements
for the degree of Master of Engineering |
| Publisher | Asian Institute of Technology |
| Abstract | An analytical model is developed to predict the
distribution of freshwater discharge from the main river into
branches and to investigate the dimensionless damping modulus
when tide propagates into the river. These information are
required to calculate the salinity intrusion in estuary.
In analytical model, the governing equations are solved
using the approximation method of Perturbation to investigate
the interaction of tide and freshwater discharge of Bassac
River. The friction term is linearized according to IPPEN. The
convective term and the effect of non-prismatic channel are
also included. The zeroth order solution is obtained by direct
integration. The IPPEN's solution is adopted for the first
order solution, then the relations of dimensionless parameters
of tide damping modulus are established. From the zeroth order
solution and assumption of force balance at node, division of
freshwater discharge for branches in looped branch can be
determined from properties of channel and flow.
The analytical model is found quite well in describing
the freshwater division of Bassac river. |
| Year | 1989 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Water Resources Research Engineering (WA) |
| Chairperson(s) | Suphat Vongvisessomjai; |
| Examination Committee(s) | Tawatchai Tingsanchali;Akiyama, Juichiro; |
| Scholarship Donor(s) | Japanese Government; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1989 |