2012 Vol. 33, No. 8

Display Method:
Flow of a Micropolar Fluid Between Two Orthogonally Moving Porous Disks
SI Xin-hui, ZHENG Lian-cun, ZHANG Xin-xin, SI Xin-yi
2012, 33(8): 907-918. doi: 10.3879/j.issn.1000-0887.2012.08.001
Abstract(2219) PDF(813)
Abstract:
The unsteady, laminar, incompressible and two dimensional flow of a micropolar fluid between two orthogonally moving porous coaxial disks was considered. An extension of von Karman’s similarity transformations was applied to reduce the governing partial differential equations (PDEs) to a set of non-...
MHD Flow of UCM Fluid Above Porous Stretching Sheet Using the Successive Taylor Series Linearisation Method
S.S.Motsa, T.Hayat, O.M.Aldossary
2012, 33(8): 919-932. doi: 10.3879/j.issn.1000-0887.2012.08.002
Abstract(2329) PDF(815)
Abstract:
The magnetohydrodynamic (MHD) boundary layer flow of an incompressible upper-convected Maxwell (UCM) fluid over a porous stretching surface was investigated. Similarity transformations were used to reduce the governing partial differential equations into a nonlinear ordinary differential equation. T...
Technique to Calculate Cell Face Velocity of a Non-Staggered Grid System
LI Wang, YU Bo, WANG Xin-ran, SUN Shu-yu
2012, 33(8): 933-942. doi: 10.3879/j.issn.1000-0887.2012.08.003
Abstract(2203) PDF(1221)
Abstract:
The calculation of cell face velocity in the discretization of continuity equation, momentum equation and scalar equation of a non-staggered grid system were discussed. Both momentum interpolation and linear interpolation were adopted to evaluate the coefficients in the discretized momentum and scal...
Effect of Viscous Dissipation and Heat Source on Flow and Heat Transfer of a Dusty Fluid Over an Unsteady Stretching Sheet
B.J.Gireesha, G.S.Roopa, C.S.Bagewadi
2012, 33(8): 943-956. doi: 10.3879/j.issn.1000-0887.2012.08.004
Abstract(2248) PDF(641)
Abstract:
The problem of hydrodynamic boundary layer flow and heat transfer of a dusty fluid over an unsteady stretching surface was investigated.The study considered the effects of frictional heating (viscous dissipation) and internal heat generation or absorption. The basic equations governing the flow and ...
Mixed Convection Flow in a Vertical Channel With Boundary Conditions of the Third Kind in the Presence of Heat Source/Sink
J.C.Umavathi, J.Prathap Kumar, Jaweriya Sultana
2012, 33(8): 957-973. doi: 10.3879/j.issn.1000-0887.2012.08.005
Abstract(2099) PDF(780)
Abstract:
The effects of viscous dissipation and heat source/sink on fully-developed mixed convection for the laminar flow in a parallelplate vertical channel were investigated. The plate exchanged heat with an external fluid. Both conditions of equal and of different reference temperatures of the external f...
Slip and Induced Magnetic Field Effects on the Peristaltic Transport of a Johnson-Segalman Fluid
T.Hayat, S.Noreen, A.Alsaedi
2012, 33(8): 974-987. doi: 10.3879/j.issn.1000-0887.2012.08.006
Abstract(1947) PDF(665)
Abstract:
Peristaltic flow of a Johnson-Segalman fluid in a planar channel was investigated in the presence of an induced magnetic field and slip condition. Symmetric nature of flow in a channel was adopted. The velocity slip condition in terms of shear stress was taken into account. Mathematical formulation ...
Equilibrium Equations for 3D Critical Buckling of Helical Springs
WU Xiu-gen, ZHENG Bai-lin, HE Peng-fei, LIU Shu-guang
2012, 33(8): 988-996. doi: 10.3879/j.issn.1000-0887.2012.08.007
Abstract(2640) PDF(1003)
Abstract:
In most cases, the research on the buckling of helical spring is based on column, the spring is equivalent to column and the torsion around the axial line is ignored. The 3D helical spring model was considered,and its equilibrium equations were established by introducing two coordinate systems, name...
Thermal Stresses in an Infinite Circular Cylinder Subjected to Rotation
A.M.Abd-Alla, G.A.Yahya
2012, 33(8): 997-1012. doi: 10.3879/j.issn.1000-0887.2012.08.008
Abstract(2225) PDF(698)
Abstract:
The present investigation was concerned with a study effect of rotation on an infinite circular cylinder subjected to certain boundary conditions. An analytical procedure for evaluation of thermal stresses, displacements and temperature in rotating cylinder subjected to thermal load along the radius...
Equations of Langmuir Turbulence and Zakharov Equations: Smoothness and Approximation
YOU Shu-jun, GUO Bo-ling, NING Xiao-qi
2012, 33(8): 1013-1024. doi: 10.3879/j.issn.1000-0887.2012.08.009
Abstract(2194) PDF(897)
Abstract:
The authors considered a family of systems parameterized by H,which described Langmuir’s turbulence, and studied the asymptotic behavior of the solutions (EH , nH ) when H went to zero. They state convergence results of (EH , nH )  to the couple (E,n) which is the solution of the Zakharov equations.
Comments on “General Solutions of Plane Problem for Power Function Curved Cracks”
CHEN Yi-zhou
2012, 33(8): 1023-1024. doi: 10.3879/j.issn.1000-0887.2012.08.010
Abstract(1715) PDF(840)
Abstract: