In this paper, flow analysis for a non-Newto- nian third-grade fluid in coronary and femoral arteries is simulated numerically. The fluid is considered as a third- grade non-Newtonian fluid under periodic body accelera- tion motion and pulsatile pressure gradient. DuFort–Fran- kel and Crank–Nicholson methods are used to solve the PDE of the governing equation and a good agreement between them was observed in the results. The influences of some physical parameters such as amplitude, lead angle and body acceleration frequency on velocity and shear stress profiles are considered. For instance, the results show that increasing the amplitude and reducing the lead angle of body acceleration, make higher velocity profiles in the center line of both arteries. Also, the maximum wall shear stress increases when the amplitude increases.
کلید واژگان :Third-grade non-Newtonian fluid · Crank– Nicholson method · DuFort–Frankel method · Femoral artery · Coronary artery
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جزئیات مقاله
- کد شناسه : 1148330283851194
- سال انتشار : 2015
- نوع مقاله : پذیرفته شده در مجلات Scopus ,ISI با 4>IF>
- زبان : انگلیسی
- محل پذیرش : Journal of the Brazilian Society of Mechanical Sciences and Engineering
- IF مجله : 0/96
- ISSN :
- تاریخ ثبت : 1395/10/13 00:03:58
- ثبت کننده : سبحان مسیبی درچه
- تعداد بازدید : 199
- تعداد فروش : 0