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Title: Non-isothermal Flow through a Curved Rectangular Duct for Large Grashof Number
Authors: Mondal, Rabindra Nath
Uddin, Md. Sharif
Islam, Ariful
Keywords: Curved duct
secondary flow
steady solutions
linear stability
Issue Date: 2008
Publisher: Vidyasagar University , Midnapore , West-Bengal , India
Series/Report no.: Journal of Physical Science;Vol 12 [2008]
Abstract: Non-isothermal flow through a curved rectangular duct of differentially heated vertical sidewalls is investigated numerically by using the spectral method, and covering a wide range of the Dean number, Dn, 0 < Dn ≤ 1000 , and the Grashof number, Gr, 1000 ≤ Gr ≤ 2000 . After a comprehensive survey over the parametric ranges, five branches of asymmetric steady solutions are obtained with two- and multi-vortex solutions by using the Newton-Raphson iteration method. Linear stability of the steady solutions is then investigated. When there is no stable steady solution, time evolution calculations are performed, and it is found that for any Gr in the range, th
Description: 109-121
ISSN: 0972-8791 (Print)
Appears in Collections:Journal of Physical Sciences Vol.12 [2008]

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