پديد آورنده :
نوربخش، اميره
عنوان :
بررسي سوسپانسيون غليظ تحت جريان پواسل با عدد رينولدز محدود در حالت سه بعدي
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده مكانيك
صفحه شمار :
شانزده،139ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
سعيد مرتضوي، احمد صابونچي
استاد مشاور :
احمدرضا پيشه ور، محسن ثقفيان
توصيفگر ها :
جريان دوفازي , اختلاف محدود , رديابي قطرات , عدد كاپيلاري
تاريخ نمايه سازي :
29/8/90
استاد داور :
محمد حسن سعيدي،ابراهيم شيراني،محمود اشرفي زاده
كد ايرانداك :
ID389 دكتري
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
142Numerical Simulation of a Concentrated Suspension in Poiseuille Flow at Finite Reynolds Numbers Amireh Nourbakhsh a nourbakhsh@me iut ac ir October 1 2011 Department of Mechanical Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Supervisors Dr Saeed Mortazavi saeedm@cc iut ac ir Dr Ahmad Saboonchi ahmadsab@cc iut ac ir Advisors Dr Ahmad Reza Pishevar Dr Mohsen Saghafian Department Graduate Program Coordinator Dr Mohammad Reza SalimpourAbstractA finite difference front tracking method is used to study the motion of three dimensionaldeformable drops suspended in plane Poiseuille flow at non zero Reynolds numbers Aparallel version of the code was used to study the behavior of suspension The viscosityand density of drops are assumed to be equal to that of the suspending medium The effectof Capillary number the Reynolds number and volume fraction are studied in detail It isfound that drops with small deformation behave like rigid particles and migrate to anequilibrium position about half way between the wall and the centerline the Segre Silberberg effect However for highly deformable drops there is a tendency for drops tomigrate to the middle of the channel and the maximum concentration occurs at thecenterline The concentration profile obtained across the channel is in agreement with thatmeasured by Kowalewski exprimentally for viscosity ratios less than or equal to one Theeffective viscosity of suspension decreases with Capillary number in agreement with thecreeping flow limit Also the effective viscosity increases with the Reynolds number of theflow Key Words Suspensions Poiseuille flow front tracking method Effective viscosity Assistant Professor Associate Professor
استاد راهنما :
سعيد مرتضوي، احمد صابونچي
استاد مشاور :
احمدرضا پيشه ور، محسن ثقفيان
استاد داور :
محمد حسن سعيدي،ابراهيم شيراني،محمود اشرفي زاده
