02956nam a2200409 4500 20260817171713.0 090698 th eng .b10119681 AIT Thesis no. WA-89-14 Nguyen Ngoc An Branching of flow in estuarine network Bangkok : Asian Institute of Technology, 1989 87 p. + 1 online resource Thesis ; no. WA-89-14 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering Thesis (M.Eng.) - Asian Institute of Technology, 1989 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. Hydraulics Mathematical models Suphat Vongvisessomjai, Chairperson Tawatchai Tingsanchali, Examination committee Akiyama, Juichiro, Examination committee Japanese Government, Scholarship donor Asian Institute of Technology. Thesis ; no. WA-89-14 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B17860 .b10119681 mnait s 240411 2 951012 m a s 0 mnait mnait mnarc 20 40 Barcode : 30050003053633 CREATED : 1994-05-16 RECORD # : i10134773 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050003308318 CREATED : 1994-05-16 RECORD # : i10134785 LPATRON : 1013061 LCHKIN : 2000-10-29 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 15 TOT RENEW : 10 Barcode : 30050160034137 CREATED : 2016-12-02 RECORD # : i12880991 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 13241 13241 0 0 0 0 MAIN MAIN mnait 2026-08-17 0 AIT Thesis no. WA-89-14 30050003053633 2026-08-17 17:17:13 1 2026-08-17 20 0 0 0 0 MAIN MAIN mnait 2026-08-17 0 AIT Thesis no. WA-89-14 30050003308318 2026-08-17 17:17:13 2 2026-08-17 20 0 0 0 0 MAIN MAIN mnarc 2026-08-17 0 AIT Thesis no. WA-89-14 30050160034137 2026-08-17 17:17:13 2026-08-17 40