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008 201021t2 2 m a|||fram|| 000 0 eng d
020 _aTHE0008929(Local)
_qhardback
040 _aUMP
_beng
_cUMP
_erda
090 _aPSM .S53 2019 r Thesis
100 0 _aMohd Shahridwan Ramli,
_eauthor.
245 1 0 _aMathematical modelling of wave impact on landward-inclined and seaward-inclined seawalls /
_cMohd Shahridwan Ramli
264 1 _aKuantan, Pahang :
_bUMP,
_c2019
264 4 _c© 2019
300 _axiii, 135 pages :
_billustrations (some color) ;
_c30 cm. +
_e1 CD-ROM
336 _atext
_2rdacontent
336 _atext
_2rdacontent
337 _aunmediated
_2rdamedia
337 _acomputer
_2rdamedia
338 _avolume
_2rdacarrier
338 _acomputer disc
_2rdacarrier
347 _atext file
_bPDF
_2rda
500 _aCentre for Mathematical Sciences
502 _aThesis (Master of Science) -- Universiti Malaysia Pahang – 2019
504 _aIncludes bibliographical references
520 3 _aShoreline and ocean structures are subjected to breaking wave loads which may reach 690𝑘𝑁𝑚−2. To reduce these loading, we might slope the exposed surface seaward or landward. However, it is unclear that sloped walls can reduce the wave impact and recent models tests indicated that sloped walls might be exposed to higher loads than vertical walls. Motivated by these findings, we perform a theoretical study of wave impacts on sloped seawalls. The mathematical models of wave impacts on landward-inclined and seaward-inclined seawalls are considered by using an extension of Cooker’s model for vertical seawalls. The pressure impulse theory proposed by Cooker is applied into these two problems which simplify the highly time-dependent and very nonlinear problem by considering the time integral of the pressure over the duration of the impact pressure-impulse. The solution to this problem is found by solving Laplace’s Equation for specific boundary condition. The perturbation theory is applied into these models and the problems are solved by using MATLAB. The correlation between the pressure impulse and the inclination angle of the wall is investigated. The results are found to be in good agreement with the experimental study. It was found that the lowest pressure impulse occurs when the small inclination happens near to the vertical wall. Study also shows that pressure impulse increases as impact region increases. Breaking wave pressures increase to 17% for landward inclined wall and to 20% for seaward inclined wall compared to vertical wall at 10° incline with impact region of 0.5. Design recommendations were found to be conservative.
610 2 0 _aCentre for Mathematical Sciences
_xDissertations
650 0 _aUniversities and colleges
_xDissertations
650 0 _aTheses
942 _2lcc
_cTHESIS