Open AccessComprehensive Review of Natural Convection Heat Transfer in Annulus Complex Enclosures
Author(s) -
Ammar Abdulkadhim,
Khaled AlFarhany,
Azher M. Abed,
Hasan Sh. Majdi
Publication year - 2020
Publication title -
mağallaẗ al-qādisiyyaẗ li-l-ʻulūm al-handasiyyaẗ
Language(s) - English
Resource type - Journals
eISSN - 2411-7773
pISSN - 1998-4456
DOI - 10.30772/qjes.v13i2.633
Subject(s) - enclosure , annulus (botany) , natural convection , heat transfer , mechanics , mechanical engineering , convection , geology , engineering , materials science , physics , electrical engineering , composite material
The natural convection heat transfer has many applications in engineering like solar collectors, cooling of electronic equipment and geothermal engineering. The present work demonstrates the recent publications in the last ten years in this specific subject for a body located in complex shapes like rhombic, wavy, trapezoidal, elliptical and Parallelogrammic enclosure. Many parameters like Ra, Nu, number of undulations, the position of the inner body had been addressed and discuss to draw the main conclusions and recommendations. It is worthy to mention that wavy enclosure had been investigated less than the other simple enclosure shapes due to its complexity. Beside that entropy generation should be included in the future studies in complex shapes of enclosure as this will helps the researchers to extended their studies. The inner bodies inside trapezoidal, parallelogrammic enclosure are very limited and more investigation should be done.