02979nam a2200409 4500 20260818171014.0 200198 th eng .b10485211 AIT Thesis no. 945 Cheng, Kuo-pin Oscillatory boundary layer flow above wavy bottom Bangkok : Asian Institute of Technology, 1977 54 p. Thesis ; no. 945 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering of the Asian Institute of Technology, Bangkok, Thailand Thesis (M.Eng.) - Asian Institute of Technology, 1977 The research reported. herein was conducted to study the characteristics of the velocity distribution and the vortex formation in the oscillatory boundary layer above the wavy bottom. This study includes numerical calculation based on Navier-Stokes equation and the finite difference method. Numerical calculation technique proposed by Carl Pearson were developed to get the stream function, vorticity, and velocity distributions within the oscillatory boundary layer above the wavy bottom. Calculation were carried out for different conditions of flow and bottom roughness and results were compared with the experimental results for the corresponding case. It was concluded in this report that the horizontal and vertical velocity components are related to the magnitudes of the ·Reynolds, number and bottom roughness. The formation of the vortex around the ripple are related strongly to Reynolds number and slightly to bottom roughness. For high Reynolds number case, the presence of large vortices distorts not only the vertical velocity but also the horizontal velocity within the oscillatory boundary layer. Boundary layer Watanabe, Akira, Chairperson Arbhabhirama Anat, Examination Committee Prida Thimakorn, Examination Committee Carl Duisberg Gesellschaft (Germany), Scholarship Donor Asian Institute of Technology. Thesis ; no. 945 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B22688 .b10485211 mnait x 250904 2 951012 m a x 0 mnait mnait mnarc 20 40 Barcode : 30050003038774 CREATED : 1994-05-18 RECORD # : i10608254 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050002837218 CREATED : 1994-05-18 RECORD # : i10608266 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050160089826 CREATED : 2016-04-28 RECORD # : i12960962 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 84682 84682 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. 945 30050003038774 2026-08-18 17:10:14 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. 945 30050002837218 2026-08-18 17:10:14 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no. 945 30050160089826 2026-08-18 17:10:14 2026-08-18 40