伴有化学反应的磁流体传热传质混合对流流经吸入/喷出多孔楔形体时的局部非相似解

P·罗甘纳坦; P·普韦阿拉苏; R·坎达沙密

doi:10.3879/j.issn.1000-0887.2010.12.004

伴有化学反应的磁流体传热传质混合对流流经吸入/喷出多孔楔形体时的局部非相似解

doi: 10.3879/j.issn.1000-0887.2010.12.004

安娜大学数学系,钦奈 600053, 印度;2.伊罗德圣古萨工程学院, 伊罗德 637209, 印度;3.马来西亚敦胡先翁大学 FSSW,柔佛 86400, 马来西亚

详细信息

中图分类号: O361.3; O357.3; O357.4
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出版历程
- 收稿日期: 1900-01-01
- 修回日期: 2010-10-30
- 刊出日期: 2010-12-15

Local Non-Similarity Solution for the Impact of Chemical Reaction on MHD Mixed Convection Heat and Mass Transfer Flow Over a Porous Wedge in the Presence of Suction/Injection

Department of Mathematics, Anna University, Chennai, India;

摘要

摘要: 研究伴有化学反应的流经多孔楔形体的，传热传质磁流体的自由、受迫和混合对流．使用结合打靶法的Runge-Kutta-Gill方法，和直到3阶截断误差的局部非相似法，将偏微分的控制方程简化为9个常微分方程．通过Falkner-Skan变换，将边界层控制方程表示为无量纲形式．由于楔形体壁面的吸入/喷出，以及可变的壁面温度和浮力的影响，使得流场呈局部非相似性．就一些特定的无量纲参变数，给出具有3阶截断误差的数值计算．图形显示可变壁面温度和浓度条件下，伴有化学反应时磁场强度对无量纲速度、温度和浓度分布的影响．
- 局部非相似性 /
- 吸入/喷出 /
- 浮力 /
- 磁场 /
- 楔形体壁面处的吸入
Abstract: Combined heat and mass transfer on free,forced and mixed convection flow along a porous wedge with magnetic effect in the presence of chemical reaction was investigated.The flow field characteristics were analyzed using the Runge-Kutta Gillwith shooting method as well as the local non-similarity method up to thirdlevel of truncation was used toreduce the governing partial differential equations into nineord inary differential equations.The governing boundary layer equations were written into a dimensionless form by Falkner-Skan transform ations.Because of the effect of suction/injection on the wall of the wedge with buoyancy force and variable wall temperature,the flow field is locally nonsimilar.Numerical calculations up to thirdorder level of truncation are carried out for different values of dmiension less param eters as a special case.Effects of the strength of magnetic field in the presence of chemical reaction with variable wall temperature and concentration on the dimensionless velocity,temperature and concen tration profiles are shown graphically.
- local non-similarity /
- suction/injection /
- buoyancy force /
- magnetic field and suction at the wall of the wedge /

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