1 AIT Asian Institute of Technology

Oil spill trajectory model for the Gulf of Thailand

AuthorWijayaratna, Tennakoon M. N.
Call NumberAIT Thesis no.WM-96-06
Subject(s)Oil spills--Thailand, Gulf of

NoteA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering. School of Civil Engineering
PublisherAsian Institute of Technology
Series StatementThesis ; no. WM-96-06
AbstractA numerical model which can simulate the fate of sudden oil spills in the Gulf of Thailand, was developed. The study initiated with the review of some existing literature on hydrodynamic and oil slick trajectory modeling. A two-dimensional depth averaged hydrodynamic model, based on Alternating-Direction Implicit method was used to generate the tidal current. Spreading of oil slick was considered to be a result of gravity, inertia, surface tension and viscous forces. Drifts due to wind, wave and tidal currents were vectorially added to simulate the advection of oil slick. Evaporation of oil was treated as a function of wind speed, geometry of the slick and the properties of oil. Hydrodynamic and oil spill trajectory models were calibrated and varified separately as there were no simultaneous data. Hydrodynamic model was calibrated for May 1993 and was verified for June 1994. The verification of oil spill trajectory model was based on the observations reported in April 1974 when an accidental oil spill occurred near the Chao Phraya river mouth. The simulated locations of the oil slick in the first couple of days were compared and found to be in good agreement with the observations.
Year1996
Corresponding Series Added EntryAsian Institute of Technology. Thesis ; no. WM-96-06
TypeThesis
SchoolSchool of Civil Engineering
DepartmentDepartment of Civil and Infrastucture Engineering (DCIE)
Academic Program/FoSWater Engineering and Management (WM)
Chairperson(s)Suphat Vongvisessomjai;
Examination Committee(s)Sutat Weesakul;Kyotoh, Harumichi;
Scholarship Donor(s)Royal Danish Government (Danida);
DegreeThesis (M.Eng.) - Asian Institute of Technology, 1996


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