سال انتشار: ۱۳۹۱

محل انتشار: بیستمین کنفرانس سالانه مهندسی مکانیک

تعداد صفحات: ۴

نویسنده(ها):

Rasoul Taqizadeh Jahed – M.Sc student of mechanical engineering, Tabriz university
Siamak Bokaei – M.Sc student of mechanical engineering, Tabriz university
Aydin Najipour – Master science of mechanical engineering, Tabriz university
Esmaeil Esmaeilzadeh – professor of mechanical engineering, Tabriz university

چکیده:

Three dimensional numerical simulations are performed on turbulent heat transfer and air flow characteristics of a flat-plate channel with several ribs and 3d heat sources and longitudinal vortex generators (LVGs) for enhancement of heat transfer. The effects of delta winglet pair (DWP) are studied. The numerical results indicate that the application of LVGs effectively enhances heat transfer of the channel. According to the performance evaluation parameter, (Nu/Nu0)/(f/f0), and numerical simulations shown in several figures and are compared to each other, the channel with DWP trailing edge exposured in front of air flow has better overall performance than the channel without longitudinal vortex generators (LVGs). The basic mechanism of heat transfer enhancement by LVGs can be well described by the field synergy principle Papers dealing with any aspect of mechanical engineering from fundamental sciences to applications in engineering systems and nature are solicited. The resulting discretized equations have been solved iteratively through strongly implicit procedure (SIP), and results are shown in several figures and are compared to each other