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Numerical investigation on the effect of different strut angle to the cerebral aneurysm / Noor Harliana A. Hamid

By:

Noor Harliana A. Hamid

Material type: Text

TextPublication details: Kuantan, Pahang : UMP, 2009Description: xiii, 71 p. : ill. (some col.) ; 30 cm. + 1 computer discISBN:

THE0005649(Local)

Subject(s):

Fluid dynamics

Dissertation note: Project paper (Bachelor of Mechanical Engineering) -- Universiti Malaysia Pahang - 2009 Abstract: The objective of this study was to determine the correlation of stent strut angle to blood flow and also to determine the flow behavior in stented aneurysm. The computational fluid dynamics was applied to access the changes of velocity and pressure in aneurysms. For this study, there are five stent with the same design but different in strut angle of the stent. The strut angle used in this study was 30°, 35°, 35°, 40°, 45° and 50°. By using 30° of strut angle as the control model and the other angle as the experimental model, there are referred to as type I, type II, type III and type IV. The simulation of the model was studied under incompressible, Newtonian, viscous and non-pulsatile condition. The results for all stents analyzed in the current study showed that the stent with higher angle are more efficient than stent with lower angle. The minimum velocity increased with the implacement of stent type IV which is the higher strut angle. Meanwhile, for the pressure distribution of all type of stents indicate that lowest peak pressure obtained by stent type III. Therefore, strut angle used should be suitable to satisfy the requirement of lowest peak pressure and highest minimum velocity. So, the strut angle has to be maintained within a certain range, which varies from 40° to 45°. Finally, the correlation obtained from this numerical result could be used to investigate the pressure distribution around the aneurysms.

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Title notes ( 3 )

Holdings
Item type	Current library	Call number	Copy number	Status	Date due	Barcode
Final Year Report	UMPLIB PEKAN	CD4139 \| TA357 .H37 2009 rs Bc. (Browse shelf(Opens below))	1	Not for loan		0000044232
Final Year Report	UMPLIB PEKAN	TA357 .H37 2009 rs Bc. (Browse shelf(Opens below))	1	Not for loan		0000044231

Project paper (Bachelor of Mechanical Engineering) -- Universiti Malaysia Pahang - 2009

Bibliography : p. [58]-60

The objective of this study was to determine the correlation of stent strut angle to blood flow and also to determine the flow behavior in stented aneurysm. The computational fluid dynamics was applied to access the changes of velocity and pressure in aneurysms. For this study, there are five stent with the same design but different in strut angle of the stent. The strut angle used in this study was 30°, 35°, 35°, 40°, 45° and 50°. By using 30° of strut angle as the control model and the other angle as the experimental model, there are referred to as type I, type II, type III and type IV. The simulation of the model was studied under incompressible, Newtonian, viscous and non-pulsatile condition. The results for all stents analyzed in the current study showed that the stent with higher angle are more efficient than stent with lower angle. The minimum velocity increased with the implacement of stent type IV which is the higher strut angle. Meanwhile, for the pressure distribution of all type of stents indicate that lowest peak pressure obtained by stent type III. Therefore, strut angle used should be suitable to satisfy the requirement of lowest peak pressure and highest minimum velocity. So, the strut angle has to be maintained within a certain range, which varies from 40° to 45°. Finally, the correlation obtained from this numerical result could be used to investigate the pressure distribution around the aneurysms.