02961nam a2200397 4500 20260817172438.0 120698 th eng .b10133938 AIT Thesis no.WA-90-18 Wudhipong Kittitanasuan Changes in channel bed slope due to non-equilibrium sediment transport Bangkok : Asian Institute of Technology, 1990 84 p. Thesis ; no. WA-90-18 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology Thesis (M.Eng.) - Asian Institute of Technology, 1990 Analytical solutions were determined to predict changes in bed levels of an alluvial channel when the upstream sediment supply in stopped or when the downstream end bed level drops. These solutions were determined by solving the continuity and momentum equations of flow and sediment transport. Two approaches were considered. The first so called the parabolic modeling considers that the friction slope in the flow momentum equation is equal to the bed slope. The second approach so called the hyperbolic modeling considers the friction slope equal to the water surface slope. The analytical solutions determined in this study are compared with the experimental data in this study and those given by Newton (1951) and also with the previous analytical solutions determined by De Vries (1973) and Gill (1983). The results of the comparison verifies the ranges of applicability given by Ribberlik (1984) of the parabolic and hyperbolic models. In general it is found that the solutions of hyperbolic model provide an more accurate prediction of changes in bed level with time than the parabolic model in the region near to the source of bed change. In the region far from the source of bed change, both models predict equally good. Sediment transport Channels (Hydraulic engineering) Tawatchai Tingsanchali, Chairperson Gupta, Ashim Das, Examination Committee Akiyama, Juichiro, Examination Committee The Government of Japan, Scholarship Donor Asian Institute of Technology. Thesis ; no. WA-90-18 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B18596 .b10133938 mnait s 240411 2 951012 m a s 0 mnait mnarc 22 40 Barcode : 30050120574214 CREATED : 2014-03-31 RECORD # : i12783146 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050160033832 CREATED : 2016-02-15 RECORD # : i12881399 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 16151 16151 0 0 0 0 MAIN MAIN mnait 2026-08-17 50.00 0 AIT Thesis no.WA-90-18 30050120574214 2026-08-17 17:24:38 3 2026-08-17 22 0 0 0 0 MAIN MAIN mnarc 2026-08-17 0 AIT Thesis no.WA-90-18 30050160033832 2026-08-17 17:24:38 2026-08-17 40