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| 1 | Theoretical investigation of micropolar fluid flow between two porous disks显示文摘The steady, laminar, incompressible and two dimensional micropolar flow between two porous disks was investigated using optimal homotopy asymptotic method(OHAM) and fourth order Runge–Kutta numerical method. Comparison between OHAM and numerical method shows that OHAM is an exact and high efficient method for solving these kinds of problems. The results are presented to study the velocity and rotation profiles for different physical parameters such as Reynolds number, vortex viscosity parameter, spin gradient viscosity and microinertia density parameter. As an important outcome, the magnitude of the microrotation increases with an increase in the values of injection velocity while it decreases by increasing the values of suction velocity. | P.Valipour S.E.Ghasemi M.Vatani | 2015 | Journal of Central South University2015，22，7： | 4 |
| 2 | A Numerical Study of Multiple Solutions for Laminar Flows in a Porous and Moving Channel显示文摘In this paper,based on the finite element formulation,we focus on multiple solutions and their evolution with time for a laminar flow in a permeable channel with expanding or contracting walls.Both Newtonian fluid and micropolar fluid are consid-ered.For the Newtonian fluid model,we find that the profile of the unique solution in the case of injection remains the same for long time,which indicates that the solution may be stable.On the other hand,in the case of large suction,the profile of multiple solutions changes in time,which suggests that the multiple solutions may be unstable.Similar behaviors and conclusions are observed for the micropolar fluid model under different boundary parameters. | Fen Wang Ping Lin Lin Li Yongyue Jiang | 2018 | Numerical Mathematics(Theory,Methods and Applications)2018，11，1： | 0 |
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