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|Title: ||A computational simulation of heat transfer to separation air flow in a concentric pipe|
|Authors: ||C. S., Oon|
Kazi, Md. Salim Newaz, Dr.
Ahmad Badarudin, Mohamad Badry, Dr.
Mohd Nashrul, Mohd Zubir
|Keywords: ||Backward facing steps;Annular pipe flow;Heat exchanger;Numerical simulation|
|Issue Date: ||27-Feb-2012|
|Publisher: ||Universiti Malaysia Perlis (UniMAP)|
|???metadata.dc.publisher.department???: ||Pusat Pengajian Kejuruteraan Mekatronik|
|Series/Report no.: ||Proceedings of the International Conference on Applications and Design in Mechanical Engineering 2012 (ICADME 2012)|
|Abstract: ||Separation and reattachment of air flow through
a sudden expansion in an annular passage is investigated.
Backward facing steps play a vital role in the design of
many heat related applications where heat transfer is
concerned. In the present work, numerical simulation is
performed using computer fluid dynamics package (Fluent)
to study the effect of step flow in an annular passage. The
obtained results are compared with the preliminary
experimental findings. The flowing fluid was heated
uniformly from the beginning of the expansion. Constant
heat flux approach was considered for the heat transfer
investigation. Annular pipe flow system having step ratio
of d/D = 1.8 was considered where d and D representing
the diameter of the pipe before and after expansion.
Numerical simulation reviews that the reattachment point
extends further with the increase of velocity for different
occasions. Finally, the local Nusselt number (Nu) increases
with the increase of Reynolds number (Re).|
|Description: ||International Conference on Applications and Design in Mechanical Engineering 2012 (ICADME 2012) organized by School of Mechatronic Engineering, Universiti Malaysia Perlis (UniMAP), 27th - 28th Februari 2012 at Bayview Beach Resort, Penang, Malaysia.|
|Appears in Collections:||Conference Papers|
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