03033nam a2200277 a 4500 vtls000045931 KUKTEM 20251114204429.0 100531t2009 my dao f m 000 0 eng d THE0005684(Local) 201905211123 hanafiah 201107132322 VLOAD 201007141619 Fida 201005311018 Fida UMP TA357.5 .S53 2009 rs Bc. Shamsul Aliff Mohd Analysis of flow phenomena in stented cerebral aneurysms / Shamsul Aliff Bin Mohd Analysis of flow phenomena in stented cerebral aneurysms [electronic resource] Kuantan, Pahang : UMP, 2009 xiv, 79 p. : ill. (some col.) ; 30 cm. + 1 computer disc Project paper (Bachelor of Mechanical Engineering) -- Universiti Malaysia Pahang - 2009 Bibliography : p. 60-63 Investigation on the changes of flow phenomena in saccular aneurysms at the Cerebral had been studied. Due to the aneurysms, the stent placement was done to prevent the rupture of aneurysms. The velocity profile and pressure distribution after and before installing the stent had been identified at the different locations of aneurysms. For each location, there is three cases with the different size of aneurysms that are 3.5 mm, 4.5 mm and 5.5 mm in radius. To identify the changes in local hemodynamic due to stent implantation, stented and non stented aneurysm models using selected stent were taken into considerations. The simulation of the model was studied under incompressible, non-Newtonian, viscous, non pulsatile condition in which we investigated computationally in a three-dimensional configuration using a Computational Fluid Dynamics (CFD) program. The minimum velocity had obtained after stents placement. In the first model, the minimum velocity obtained for non stented is 0.374 m/s for case 1, 0.421 m/s for case 2 and 0.36 m/s for case 3. After stenting implementation, the higher minimum velocity were increased for all cases. For case 1 is 0.416 m/s, case 2 is 0.443 m/s and case 3 is 0.404 m/s. In the second model, the minimum velocity for non-stented aneurysms is 0.487 m/s for case 1, 0.424 m/s and 0.343 m/s for case 3. After stenting, the velocity also increased. For case 1 is 0.495 m/s, case is 0.454 m/s and case 3 is 0.382 m/s. The different locations of aneurism, will give the different result of velocity profile and pressure distribution. In the first model, the peak pressure for non-stented aneurysms is 453 Pa and for stented is 422 Pa. While, in second model, for non-stented aneurysms, the peak pressure is 455 Pa and 432 Pa for stented aneurysms. Finally, the correlations obtained from this numerical result could be used to investigate the pressure distribution around the diseased segment. Aneurysms Intracranial aneurysms Fluid dynamics 0 0 0 1 20000 20000 2019-09-04 0 TA357.5 .S53 2009 rs Bc. 0000046283 2019-09-04 00:00:00 1 2019-09-04 PSM 0 0 0 1 20000 20000 2019-09-04 0 CD 4442 | TA357.5 .S53 2009 rs Bc. 0000046284 2019-09-04 00:00:00 1 2019-09-04 PSM VIRTUA40 1893 1899 VTLSSORT0080*0200*0400*0900*1000*2450*2460*2600*3000*5020*5040*5200*6500*6501*6502*9992