Simulation of laminar forced convection heat transfer and fluid flow over a backward facing step with obstacle using (SIO2) nanoparticles
Joint Authors
Kamil, Muhammad Sad
al-Budur, Ahmad Khafif Ubayd
Source
Thi-Qar University Journal for Engineering Sciences
Issue
Vol. 6, Issue 2 (31 Dec. 2015), pp.80-92, 13 p.
Publisher
University of Thi-Qar College of Engineering
Publication Date
2015-12-31
Country of Publication
Iraq
No. of Pages
13
Main Subjects
Engineering & Technology Sciences (Multidisciplinary)
Abstract EN
Simulation of Heat transfer and laminar Sio2/water and Sio2/oil-engine flow over backward facing step with and without obstacle numerically studied in this paper.
The finite volume method adopted to solve continuity, momentum and energy equations in two dimensions.
The aspect ratio of triangular obstacle w/e = 0.5 presented.
The step height and expansion ratio of channel were 4.8mm and 2 respectively, the range of Reynolds number varied from 100 to 250, constant heat flux subjected on downstream of wall was 2000W/m2.Two types of base fluid used in this simulation the water and oil-engine with constant properties at T = 300K°, The Sio2 nanoparticles used with nanoparticles diameter 30nm and volume friction 4%.
The average nusselt number noticed increase with increase Reynolds number with obstacle for two basefluid and also noticed that the nanofluid of Sio2-oil engine has higher nusselt number compared with other nonofluid.
The result shows increase of local nusselt number for backward facing step with obstacle in compared to those without obstacle.
The maximum enhancement of heat transfer observed at obstacle due to increase recirculation flow after the obstacle.
Streamline showing the increase of recirculation region with used obstacle in compared without obstacle and highest recirculation region observed at obstacle.
American Psychological Association (APA)
Kamil, Muhammad Sad& al-Budur, Ahmad Khafif Ubayd. 2015. Simulation of laminar forced convection heat transfer and fluid flow over a backward facing step with obstacle using (SIO2) nanoparticles. Thi-Qar University Journal for Engineering Sciences،Vol. 6, no. 2, pp.80-92.
https://search.emarefa.net/detail/BIM-758603
Modern Language Association (MLA)
Kamil, Muhammad Sad& al-Budur, Ahmad Khafif Ubayd. Simulation of laminar forced convection heat transfer and fluid flow over a backward facing step with obstacle using (SIO2) nanoparticles. Thi-Qar University Journal for Engineering Sciences Vol. 6, no. 2 (2015), pp.80-92.
https://search.emarefa.net/detail/BIM-758603
American Medical Association (AMA)
Kamil, Muhammad Sad& al-Budur, Ahmad Khafif Ubayd. Simulation of laminar forced convection heat transfer and fluid flow over a backward facing step with obstacle using (SIO2) nanoparticles. Thi-Qar University Journal for Engineering Sciences. 2015. Vol. 6, no. 2, pp.80-92.
https://search.emarefa.net/detail/BIM-758603
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 91-92
Record ID
BIM-758603