Papers by Md Harun Rashid
The ACCESS coupled model: description, control climate and evaluation
Australian Meteorological and Oceanographic Journal
The present study addresses numerical prediction of Dean-Taylor flow through a coiled rectangula... more The present study addresses numerical prediction of Dean-Taylor flow through a coiled rectangular duct of
curvature 0.1. The spectral method is used as a rudimental tool to solve the system of non-linear partial differential
equation of order two. The emerging parameters controlling the flow characteristics are the rotation parameter i.e. Tr,
(incorporating Coriolis force), Grashof number (Gr), Prandtl number (Pr=7.0), aspect ratio (a=2), and pressure-driven
parameter i.e. Dean number Dn (incorporating centrifugal force). The flow structures are explored for the effects of
rotation parameter and pressure-driven parameter. We investigated unsteady flow characteristics for negative rotation of
the duct for the Dean numbers Dn = 700 over the Taylor number ranging -500 to -10, and it is found that the unsteady
flow undergoes through various flow instabilities, if Tr, is increased in the negative direction. Typical contours of
secondary flow patterns and temperature profiles are obtained at several values of Tr, and it is seen that the unsteady flow
consists of two-, three-, four-, five-, and six -vortex solutions. Convective heat transfer is also investigated, and it is
observed that the chaotic flow enhances heat transfer more significantly than the steady-state or periodic solutions. Axial
flow distribution is also calculated that is well-matched with the secondary flow patterns
The current paper generalizes the Edelstein fixed point theorem for digital ( , )-chainable metri... more The current paper generalizes the Edelstein fixed point theorem for digital ( , )-chainable metric spaces. In order to generalize Edelstein fixed point theorem, we study the digital topological properties of digital images. Further, we establish the Banach fixed point theorem for digital images. We give the notion of digital ( , , )-uniformly locally contraction mapping on digital ( , )-chainable metric spaces. Finally, we generalize the Banach fixed point theorem to digital ( , )-chainable metric spaces which is known as the Edelstein fixed point theorem for digital images on digital ( , )-chainable metric spaces.
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Papers by Md Harun Rashid
curvature 0.1. The spectral method is used as a rudimental tool to solve the system of non-linear partial differential
equation of order two. The emerging parameters controlling the flow characteristics are the rotation parameter i.e. Tr,
(incorporating Coriolis force), Grashof number (Gr), Prandtl number (Pr=7.0), aspect ratio (a=2), and pressure-driven
parameter i.e. Dean number Dn (incorporating centrifugal force). The flow structures are explored for the effects of
rotation parameter and pressure-driven parameter. We investigated unsteady flow characteristics for negative rotation of
the duct for the Dean numbers Dn = 700 over the Taylor number ranging -500 to -10, and it is found that the unsteady
flow undergoes through various flow instabilities, if Tr, is increased in the negative direction. Typical contours of
secondary flow patterns and temperature profiles are obtained at several values of Tr, and it is seen that the unsteady flow
consists of two-, three-, four-, five-, and six -vortex solutions. Convective heat transfer is also investigated, and it is
observed that the chaotic flow enhances heat transfer more significantly than the steady-state or periodic solutions. Axial
flow distribution is also calculated that is well-matched with the secondary flow patterns