پديد آورنده :
بياره، مرتضي
عنوان :
شبيه سازي عددي سوسپانسيون غليظ تحت جريان برشي ساده در اعداد رينولدز محدود
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده مكانيك
صفحه شمار :
دوازده،102ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
سعيد مرتضوي
استاد مشاور :
ابراهيم شيراني، محمود اشرفي زاده
توصيفگر ها :
جريان دوفازي , اختلاف محدود , رديابي قطرات , قطره , جريان برشي
تاريخ نمايه سازي :
27/9/89
استاد داور :
احمدرضا پيشه ور، محمد حسن سعيدي، محسن نصر اصفهاني
كد ايرانداك :
ID341 دكتري
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
Three dimensional numerical simulation of drops suspended in simple shear flow at finite Reynolds numbers Seyyed Morteza Bayareh mbayareh@me iut ac ir October 8 2010 Department of Mechanical Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Supervisor Dr Saeed Mortazavi saeedm@cc iut ac ir Advisors Dr Ebrahim Shirani Dr Mahmoud Ashrafizadeh Department Graduate Program Coordinator Dr Mehdi Keshmiri Abstract A three dimensional study of suspension of drops in simple shear flow has been performed at finite Reynolds numbers The results are obtained using a finite difference front tracking method in a periodic domain The parallel version of the code was used on clusters of computing resources The effect of the Reynolds number and the Capillary number is addressed at two volume fractions 0 195 and 0 34 The results show that suspensions of deformable drops exhibit a shear thinning behavior Similar to the motion of a single drop drops migrate away from the walls The effective viscosity the first and the second normal stress differences oscillate around a mean value in all cases The first normal stress difference increases with the Capillary number the Reynolds number and the volume fraction The results show that drops deform more and orient more in the flow direction as the Capillary number or the volume fraction is increased Also the average size of clusters is smaller than for suspension of rigid particles The radial dependence of the pair distribution function across the channel has been studied This dependency shows that the tendency to form clusters is reduced as the Capillary number increases or the volume fraction decreases Key Words Two phase Flow Finite difference Front Tracking Drop Shear flow Assistant Professor Professor Assistant Professor
استاد راهنما :
سعيد مرتضوي
استاد مشاور :
ابراهيم شيراني، محمود اشرفي زاده
استاد داور :
احمدرضا پيشه ور، محمد حسن سعيدي، محسن نصر اصفهاني
