03426nam a2200433 4500 20260818223554.0 170698 th eng .b10658476 AIT Thesis no. WA-93-4 Yang, Dafang Suspension of mixed sand under wave motion Bangkok : Asian Institute of Technology, 1993 81 leaves : ill. Thesis ; no. WA-93-4 Thesis (M.Eng.) - Asian Institute of Technology, 1993 A thesis submited in partial fulfillment of the requirements for the degree of Master of Engineering. The suspended sedimentation has been studied by numerous researchers, but they assume the sand diametereither is a constant or presented by a single diameter, although the practical beach consists of non-uniform sand. Therefore this study will be concerned with the suspension of mixed sand. A numerical model k-e model was used to simulate the suspension of mixed sand under wave motion, alsointhis study the wall function method which oneofboundaryconditions was introduced. The computed fluid field by this k-E model has been compared with Jonsson's & Carlsen's (1976) data and good agreement is found, and the friction factor criteria is proposed if the wall function method were used under wave motion. Also the computed results of suspension under the uniform sand assumption have been compared with Chen's (1992) data, and good agreement is found in the lower part near bed region. The computed results of suspension ofmixed sand have been compared with Kajima's & Saito's (1971) data, for small grain size the computed concentration will be underestimated and for large grain size the good agreement is found. The difference of computed concentration of mixed sand and uniform sand in Kajima & Saito (1971) case is small, and mixed sand concentration is slight larger than the concentration ofuniform sand.Foreach grain size concentration profile, their shapes are quite similar with each other, its slope is the function of sand diameter and sand fraction under the same wave conditions. Sediment, Suspended Coastal engineering Tanaka, Hitoshi, Chairperson Suphat Vongvisessomjai, Examination Committee Tawatchai Tingsanchali, Examination committee Sutat Weesakul, Examination committee The Government of Denmark, Scholarship donor Asian Institute of Technology. Thesis ; no. WA-93-4 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B16325 .b10658476 mnait s 240401 2 951012 m a s 0 mnait mnait mnarc 20 40 Barcode : 30050003055646 CREATED : 1994-05-19 RECORD # : i10845872 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050003055653 CREATED : 1994-05-19 RECORD # : i10845884 LPATRON : 1015088 LCHKIN : 2001-07-19 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 1 TOT RENEW : 0 Barcode : 30050160033014 CREATED : 2016-02-15 RECORD # : i12882914 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 116501 116501 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. WA-93-4 30050003055646 2026-08-18 22:35:54 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. WA-93-4 30050003055653 2026-08-18 22:35:54 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no. WA-93-4 30050160033014 2026-08-18 22:35:54 2026-08-18 40