03031nam a2200421 4500 20260818170304.0 170698 th eng .b10471261 AIT Thesis no. WA-92-23 Qin, Huimin Numerical simulation of sand terrace formation at a river mouth Bangkok : Asian Institute of Technology, 1992 86 leaves Thesis ; no. WA-92-23 A thesis submitted in partial fulfillment of the requirement for the degree of Master of Engineering, School of Engineering and Technology Thesis (M.Eng.) - Asian Institute of Technology, 1992 In this study the results of numerical simulation of sand terrace formation in front of a river mouth are presented. A finite difference leap-frog scheme is applied as a method for the time integration procedure. A process of sand terrace formation in the conditions of different jetty length and steep slope longshore bed as well as constant in time solid and fluvial runoff have been investigated. The flow velocities and bed elevations from the numerical model are compared with the experimental results. The available two-dimentional depth-averaged hydrodynamic model is used to compute the velocity field and water surface elevation by solving the continuity and momentum equation of flow. For the morphological model, the sediment balance equation and sediment transport formula are solved to simulate the morphological process. Besides employing uniform schematization, a mixed schematization in the computation is attempted. The hydrodynamic and morphological model are found to give good prediction for the relevant geometrical shape of sand terrace with respect to time. Sediment transport Mathematical models Hydrodynamics Simulation methods Tanaka, Hitoshi, Chairpeson Suphat Vongvisessomjai, Examination Committee Tawatchai Tingsanchali, Examintion Committee CIDA, Scholarship Donor Asian Institute of Technology. Thesis ; no. WA-92-23 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B17285 .b10471261 mnait s 240402 2 951012 m a s 0 mnait mnait mnarc 20 40 Barcode : 30050003055398 CREATED : 1994-05-18 RECORD # : i10590316 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050003055406 CREATED : 1994-05-18 RECORD # : i10590328 LPATRON : 1009584 LCHKIN : 1998-05-29 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 2 TOT RENEW : 1 Barcode : 30050160033147 CREATED : 2016-02-15 RECORD # : i12882781 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 82100 82100 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. WA-92-23 30050003055398 2026-08-18 17:03:04 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. WA-92-23 30050003055406 2026-08-18 17:03:04 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no. WA-92-23 30050160033147 2026-08-18 17:03:04 2026-08-18 40