پديد آورنده :
رضايي علم، محمد
عنوان :
شبيه سازي عددي جريان آرام ﴿ دو بعدي و سه بعدي﴾ حول استوانه هاي ساكن و متحرك عبوري از كنار يكديگر
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
تبديل انرژي
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده مكانيك
صفحه شمار :
هشت، 99، [II] ص.: مصور، جدول، نمودار
يادداشت :
ص. ع. به فارسي و انگليسي
استاد راهنما :
محسن ثقفيان
استاد مشاور :
محمد سعيد سعيدي
توصيفگر ها :
اجسام گذرنده , گام برداري قطري , ميان يابي مثلثي، هرمي , شار جرم
تاريخ نمايه سازي :
1/7/86
استاد داور :
محسن دوازده امامي، محمود اشرفي زاده
تاريخ ورود اطلاعات :
1396/02/25
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتال
چكيده انگليسي :
AbstractThe interactions of flow over two cylinders passing by each other have been investigatedat the first part of this thesis using overset grids method In this part two cylinders passingeach other at three different cases are investigated numerically when Reynolds number is40 At first each cylinder passes through the minor grid of the other one In second case anoptimization method have been used to modify overset grids method In third case fromthe beginning of the motion all of the minor grid cells are omitted from the computationaldomain where second cylinder grid passes through them It is shown that better results andshorter computational CPU time have been obtained using third case In addition theinteractions of two rectangular cylinders passing by each other have been investigated atRe 2 Different interpolation methods are used and the results are compared Finally at theend of this part force coefficient for two rectangular cylinders passing by each other havebeen investigated considering the effect of Reynolds number cylinder size and distancebetween two cylinders At second part of this thesis flow field around a three dimensional square cylinder areinvestigated in different Reynolds numbers using overset grids method Flow modes andtransition Reynolds number from two to three dimensional flow have been investigated Inaddition force coefficients and strouhal number for square cylinder have been obtained using 2D and 3D modeling Three dimensional modeling shows better agreement withexperimental data from the literature Finally flow field around two square 3D cylinders inthe staggered arrangement are investigated when Re 250
استاد راهنما :
محسن ثقفيان
استاد مشاور :
محمد سعيد سعيدي
استاد داور :
محسن دوازده امامي، محمود اشرفي زاده
