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首页> 外文期刊>Journal of Heat Transfer >Three-Dimensional Magnetic Fluid Boundary Layer Flow Over a Linearly Stretching Sheet
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Three-Dimensional Magnetic Fluid Boundary Layer Flow Over a Linearly Stretching Sheet

机译：线性拉伸片上的三维磁性流体边界层流

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摘要

The three-dimensional laminar and steady boundary layer flow of an electrically nonconducting and incompressible magnetic fluid, with low Curie temperature and moderate saturation magnetization, over an elastic stretching sheet, is numerically studied. The fluid is subject to the magnetic field generated by an infinitely long, straight wire, carrying an electric current. The magnetic fluid far from the surface is at rest and at temperature greater of that of the sheet. It is also assumed that the magnetization of the fluid varies with the magnetic field strength H and the temperature T. The numerical solution of the coupled and nonlinear system of ordinary differential equations, resulting after the introduction of appropriate nondimensional variables, with its boundary conditions, describing the problem under consideration, is obtained by an efficient numerical technique based on the common finite difference method. Numerical calculations are carried out for the case of a representative water-based magnetic fluid and for specific values of the dimensionless parameters entering into the problem, and the obtained results are presented graphically for these values of the parameters. The analysis of these results showed that there is an interaction between the motions of the fluid, which are induced by the stretching surface and by the action of the magnetic field, and the flow field is noticeably affected by the variations in the magnetic interaction parameter β. The important results of the present analysis are summarized in Sec. 6.
机译：数值研究了居里温度低，饱和磁化强度中等的非导电且不可压缩的磁性流体在弹性拉伸板上的三维层流和稳定边界层流动。流体会受到无限长的直导线产生的磁场的影响，并带有电流。远离表面的磁性流体处于静止状态，并且温度高于薄板的温度。还假设流体的磁化强度随磁场强度H和温度T的变化而变化。在引入适当的无量纲变量及其边界条件之后，常微分方程的耦合和非线性系统的数值解就变为：通过基于普通有限差分法的有效数值技术可以获得描述所考虑问题的描述。对于代表性的水基磁性流体的情况和进入问题的无量纲参数的特定值进行了数值计算，并针对这些参数值以图形方式显示了获得的结果。对这些结果的分析表明，由拉伸表面和磁场作用引起的流体运动之间存在相互作用，并且流场受电磁相互作用参数β的变化显着影响。 。本分析的重要结果总结于第二节。 6。

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