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首页> 外文期刊>International journal of numerical methods for heat & fluid flow >Eyring-Powell fluid flow through a circular pipe and heat transfer: full solutions
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Eyring-Powell fluid flow through a circular pipe and heat transfer: full solutions

机译：喉孔流经圆管和热传递：全面解决方案

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Purpose - The purpose of this study is to examine the non-Newtonian physical model of Eyring-Powell fluid for the rheology inside a long circular pipe. Design/methodology/approach - Although many research studies are available now on this topic, none gives full solutions explicitly accessible. Findings - It is proven here that the hydrodynamically fully developed fluid flow acknowledges the exact solution, influenced by a non-Newtonian parameter as well as the adverse pressure gradient parameter prevailing the flow domain. These parameters are unified under a new parameter known as the generalized Eyring-Powell parameter. Without the presented analytical data, it is impossible to detect the validity range of such physical non-Newtonian solutions, which is shown to be restricted. Originality/value - Full solution of the energy equation for the thermally fully developed laminar regime is also presented under the assumption of uniform wall temperature at the pipe wall. The physical impacts of pertinent parameters on the rheology of the non-Newtonian fluid with regard to the Reynolds number, Darcy friction factor and pressure drop are easy to interpret from the derived formulae. Particularly, a decrease in the centerline velocity and an increase in the rate of heat transfer are clarified for the considered flow configuration.
机译：目的 - 本研究的目的是检查长圆管内的流变学的无牛皮粉流体的非牛顿物理模型。设计/方法/方法 - 虽然现在在本主题上使用了许多研究研究，但无提供明确访问的完整解决方案。结果 - 在此证明，流体动力学完全开发的流体流动承认受非牛顿参数的精确解决方案以及普遍流动域的不利压力梯度参数。这些参数在称为泛型OERING-Powell参数的新参数下统一。如果没有呈现的分析数据，则无法检测到这种物理非牛顿解决方案的有效范围，这被示出了被限制。在管壁上的均匀壁温的假设下，还介绍了热完全开发的层状制度的能量方程的原始性/值 - 在管壁上的均匀壁温下呈现。相关参数对雷诺数，达西摩擦因子和压降的非牛顿流体流变的身体影响易于解释衍生的公式。特别地，澄清了中心线速度的降低和传热速率的增加，以用于考虑的流动配置。

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