The influence of surface geometry on heat transfer from flat plate in impinging jet

العناوين الأخرى

تأثير الأسطح الهندسية على نقل الحرارة بالتبريد التصادمي من الصفيحة المستوية

المؤلف

Jasim, Hadil Abd al-Hadi

المصدر

Journal of Engineering and Sustainable Development

الناشر

الجامعة المستنصرية كلية الهندسة

تاريخ النشر

2018-03-31

دولة النشر

العراق

عدد الصفحات

12

التخصصات الرئيسية

الهندسة الميكانيكية

الملخص الإنجليزي

investigational examination is achieved to education the influence of the ribbed protuberance (height) surface on the local heat transfer measurements amid the impinging round air jet and flat plate.

The ribs secondhand are in the procedure of triangular of 3 mm tall and 3 mm widespread set apart at a pitch of 6 and 12 mm on the target plate which need a rib pitch to height ratio p/e of 2 and 4, individually.

The extensively unlocked hollow among adjacent ribs create additional penetrating conveyance of impetus amid the wall jet and cavity flow This leads to a higher heat transfer around the cavity wall .Heat transfer enhancement by a factor of 1.2– 2.5 was experiential contingent on the rib pitch to height ratio p/e, orifice to plate arrangement and the Reynolds number is experiential in situation of triangular ribbed surfaces as likened to the flat surface.

Throughout the experimentations, the Reynolds number differs from (12000 toward 28000) founded on orifice diameter of 10 mm and jet to plate arrangement( H/D) amid 2 to 8 times of the orifice diameter.

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أوراق مؤتمرات

رقم السجل

BIM-907219

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