مقاله Numerical analysis of natural convection heat transfer in a horizontal two cam shape cylinders partially filled with a fluidدرsaturated porous substrate دارای 6 صفحه می باشد و دارای تنظیمات در microsoft word می باشد و آماده پرینت یا چاپ است
فایل ورد مقاله Numerical analysis of natural convection heat transfer in a horizontal two cam shape cylinders partially filled with a fluidدرsaturated porous substrate کاملا فرمت بندی و تنظیم شده در استاندارد دانشگاه و مراکز دولتی می باشد.
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بخشی از متن مقاله Numerical analysis of natural convection heat transfer in a horizontal two cam shape cylinders partially filled with a fluidدرsaturated porous substrate :
سال انتشار: 1393
محل انتشار: بیست و دومین کنفرانس سالانه مهندسی مکانیک
تعداد صفحات: 6
چکیده:
In this paper natural convection heat transfer within a two- dimensional, horizontal, concentric cam shape cylinders that is partially filled with a fluid saturated porous medium has been investigated. both cylinder are maintained at constant and uni- form temperatures with the outer cylinder being subjected rel- atively lower than the inner one. In addition the forchheimer effect are taken into consideration when simulation the fluid motion inside the porous sleeve. furthermore, the local thermal equilibrium condition is take into account.the porosity is considered to be uniform and constant with = 09 the main objective of this study is to examine the effect of thermal conductivity ratio (ks/kf) and the porous sleeve thickness on the bouyancy induced flow motion under steady state condition. such an effect is studied using the following dimensionless parameters: Ra = 10^4-10^6, Da = 10^-3-10^-5. The result show that Nu number is affected most by conductivity ratio.
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