03091nam a2200385 4500 20260818214048.0 170698 th eng .b10603086 AIT Thesis no.WA-93-20 Lu, Thai-hong Simulation of a storm-induced beach profile Bangkok : Asian Institute of Technology, 1993 66 leaves : ill. Thesis ; no. WA-93-20 Thesis (M.Eng.) - Asian Institute of Technology, 1993 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering. Beach berm and even dunes eroded under storm wave with high water level, will cause material to remove offshore to form a far parallel to the beach, and reach almost the final shape at some ultimate location. Actually wave heights and wave period vary continuously during the storm period, but as a first step of engineering approach, only the fix storm wave heights and period are used to estimate how these wave characters affect bar positions and heights during the course of a storm. This study aim to use the semi-emperical relationship of sediment transport rate propsed by Larson and Kraus (1989) to visualize the incipient formation, growth and movement of a bar during storm period and also to estimate the retreat of foreshore beach under storm action.It is found from the present numerical modeling, that comparing the computed and measured beach profile for 0.22 mm and 0.40 mm sand diameter, it gives good agreement especially at the final state. Model improvement was conducted by two approach, firstly the shape parameter of equilibrium beach profile is substituted by the new relationship with the dimensionless fall velocity and then it can provide better simulation of bar size and location. Secondly the time-dependent of sediment transport rate coefficient is newly proposed and found to be more realistic to the profile of initial state of bar development. Lastly the bar developing and always moving offshore with different speed as time increasing. Beach erosion Sutat Weesakul, Chairperson Suphat Vongvisessomjai, Examination Committee Tanaka, Hitoshi, Examination committee The Government of Republic of China, Scholarship donor Asian Institute of Technology. Thesis ; no. WA-93-20 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B16390 .b10603086 mnait s 240410 2 951012 m a s 0 mnait mnarc 22 40 Barcode : 30050120575229 CREATED : 2014-01-04 RECORD # : i12784825 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050160032867 CREATED : 2016-02-15 RECORD # : i12883074 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 107114 107114 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.WA-93-20 30050120575229 2026-08-18 21:40:48 3 2026-08-18 22 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.WA-93-20 30050160032867 2026-08-18 21:40:48 2026-08-18 40