Numerical study of fluid flow and heat transfer characteristics in solid and perforated finned heat sinks utilizing a piezoelectric fan
Other Title(s)
دراسة عددية لخصائص جريان المانع و انتقال الحرارة في مصب حراري صلب و مثقب مجهز بمروحة كهروضغطية
Joint Authors
Salman, Aysar Shamil
al-Safi, Muhammad Abd al-Rauf Nimah
Source
Issue
Vol. 25, Issue 7 (31 Jul. 2019), pp.83-103, 21 p.
Publisher
University of Baghdad College of Engineering
Publication Date
2019-07-31
Country of Publication
Iraq
No. of Pages
21
Main Subjects
Abstract EN
Numerical study is adapted to combine between piezoelectric fan as a turbulent air flow generator and perforated finned heat sinks.
A single piezoelectric fan with different tip amplitudes placed eccentrically at the duct entrance.
The problem of solid and perforated finned heat sinks is solved and analyzed numerically by using Ansys 17.2 fluent, and solving three dimensional energy and Navier–Stokes equations that set with RNG based k−ε scalable wall function turbulent model.
Finite volume algorithm is used to solve both phases of solid and fluid.
Calculations are done for three values of piezoelectric fan amplitudes 25 mm, 30 mm, and 40 mm, respectively.
Results of this numerical study are compared with previous both numerical and experimental studies and give a good agreement.
Numerical solution is invoked to explain the behavior of air flow and temperature distribution for two types of circular axial and lateral perforations.
For each type, all the results are compared with an identical solid finned heat sink.
Perforations show a remarkable enhanced in the heat transfer characteristics.
The results achieved enhancement in the heat transfer coefficient about 12% in axial perforation and 25% in the lateral perforation at the maximum fan amplitude.
American Psychological Association (APA)
Salman, Aysar Shamil& al-Safi, Muhammad Abd al-Rauf Nimah. 2019. Numerical study of fluid flow and heat transfer characteristics in solid and perforated finned heat sinks utilizing a piezoelectric fan. Journal of Engineering،Vol. 25, no. 7, pp.83-103.
https://search.emarefa.net/detail/BIM-886445
Modern Language Association (MLA)
Salman, Aysar Shamil& al-Safi, Muhammad Abd al-Rauf Nimah. Numerical study of fluid flow and heat transfer characteristics in solid and perforated finned heat sinks utilizing a piezoelectric fan. Journal of Engineering Vol. 25, no. 7 (Jul. 2019), pp.83-103.
https://search.emarefa.net/detail/BIM-886445
American Medical Association (AMA)
Salman, Aysar Shamil& al-Safi, Muhammad Abd al-Rauf Nimah. Numerical study of fluid flow and heat transfer characteristics in solid and perforated finned heat sinks utilizing a piezoelectric fan. Journal of Engineering. 2019. Vol. 25, no. 7, pp.83-103.
https://search.emarefa.net/detail/BIM-886445
Data Type
Journal Articles
Language
English
Notes
Includes appendix : p. 102-103
Record ID
BIM-886445