Study on flow characteristics and heat transfer behavior around different geometrical corrugated extended surfaces
Other Title(s)
دراسة خصائص الجريان و انتقال الحرارة حول سطوح متموجة ذات أشكال هندسية مختلفة
Author
Source
al-Khwarizmi Engineering Journal
Issue
Vol. 11, Issue 2 (30 Jun. 2015), pp.31-44, 14 p.
Publisher
University of Baghdad al-Khwarizmi College of Engineering
Publication Date
2015-06-30
Country of Publication
Iraq
No. of Pages
14
Main Subjects
Topics
Abstract AR
تتناول هذه الدراسة استقصاء عددي حول خصائص جريان المائع (الهواء) و انتقال الحرارة بالحمل حول سطوح متموجة ذات أشكال هندسية مختلفة لمدى عدد رينولد واطئ (Re < 1000).
الأشكال الهندسية تتضمن الشكل الموجي و المثلث و المستطيل.
تم دراسة تأثير عوامل شكلية متغيرة مثل النسبة الباعية و عدد الدورات خلال وحدة الطول على خصائص الجريان و انتقال الحرارة و تمت مقارنتها مع بعضها.
تم استخدام برنامج المحاكاة الحاسوبي (ANSYS 14) لمحاكاة مجال الجريان و انتقال الحرارة و حل المعادلات الحاكمة و استخراج النتائج.
وجد أن شدة الاضطراب للسطح المتموج المستطيل أكبر منها للسطح المثلث و من ثم السطح المتموج عن النسبة الباعية نفسها و عدد الدورات في وحدة الطول.
كذلك وجد أن زيادة شدة الاضطراب حول السطوح المتموجة أدى إلى تحسين معامل انتقال الحرارة.
Abstract EN
The current study presents numerical investigation of the fluid (air) flow characteristics and convection heat transfer around different corrugated surfaces geometry in the low Reynolds number region (Re < 1000).
The geometries are included wavy, triangle, and rectangular.
The effect of different geometry parameters such as aspect ratio and number of cycles per unit length on flow field characteristics and heat transfer was estimated and compared with each other.
The computerized fluid dynamics package (ANSYS 14) is used to simulate the flow field and heat transfer, solve the governing equations, and extract the results.
It is found that the turbulence intensity for rectangular extended surface was larger than that of triangle and wavy extended surfaces at the same aspect ratio and number of cycles per unit length.
Also, the increasing of turbulence intensity leads to enhance the heat transfer coefficient and consequently the amount of heat transfer.
According to previous results, if the pressure head losses along the upstream are not important, the using of rectangular extended surface is better than the triangle which is also better than wavy extended surface.
American Psychological Association (APA)
Musa, Nusayr Abd al-Razzaq. 2015. Study on flow characteristics and heat transfer behavior around different geometrical corrugated extended surfaces. al-Khwarizmi Engineering Journal،Vol. 11, no. 2, pp.31-44.
https://search.emarefa.net/detail/BIM-589789
Modern Language Association (MLA)
Musa, Nusayr Abd al-Razzaq. Study on flow characteristics and heat transfer behavior around different geometrical corrugated extended surfaces. al-Khwarizmi Engineering Journal Vol. 11, no. 2 (2015), pp.31-44.
https://search.emarefa.net/detail/BIM-589789
American Medical Association (AMA)
Musa, Nusayr Abd al-Razzaq. Study on flow characteristics and heat transfer behavior around different geometrical corrugated extended surfaces. al-Khwarizmi Engineering Journal. 2015. Vol. 11, no. 2, pp.31-44.
https://search.emarefa.net/detail/BIM-589789
Data Type
Journal Articles
Language
English
Notes
Includes appendices : p. 43
Record ID
BIM-589789