Article ID Journal Published Year Pages File Type
5488301 Chinese Journal of Physics 2017 7 Pages PDF
Abstract
Problem of two dimensional, steady and viscous fluids in a rectangular converging (diverging) plane walls is studied here. Rectangular coordinate system is considered in which x is representing axial direction and y is normal to it. Walls are situated at y=±(mx+h0) where m is the slope of channel walls and  ± h0 are y-intercepts or 2h0 is gap between walls when x=0. The free stream at center of channel is inversely proportional to mx+h0. Flow phenomena have been characterized by non-dimensional parameters Re (Reynolds number) and slopes of walls m. The governing equations are reduced to a set of ordinary differential equations by using appropriate transformations for velocity components and pressure. These ordinary differential equations have been solved for different values of m and Re subject to relevant boundary conditions. Effects of parameters on velocity and pressure distributions have been studied. Three types of solutions are discussed here: perturbation solution, numerical solutions and a solution obtained by collocation method. Also these results are matched with classical models. For reasonable values of parameters, excellent agreement among solutions is also found.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Atomic and Molecular Physics, and Optics
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