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  • free convection enhancement between inclined wall and air in presence of expired jets at temperature difference of 40 k

    نویسندگان :
    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 887
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     this paper aims to determine the heat transfer enhancement in natural convection between a downward-facing inclined wall, heated by joule effect, and air in the presence of small air pulsating expired jets, in conditions of medium temperature difference between wall and air, namely 40 k. experimental measurements have been taken both with and without pulsating expired jets. the wall is kept in condition of uniform temperature. the expired jets blow out perpendicularly from the wall surface. an infrared thermo-camera was used to check the wall temperature uniformity. hot-wire anemometer and visualization with smoke were used to find information on the air velocity field.the wall inclination angle which maximizes the convective heat exchange near the leading edge has been investigated too.

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