HEAT TRANSFER IN STEADY VISCOELASTIC FLOW IN PIPES OF COMPLEX SHAPES

机译：复杂形状管道中稳态粘弹性流动的传热

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An analysis of heat transfer in pipe-flow is presented for the cases in which viscoelastic properties of the fluid induce secondary flows in no-circular tubes, thus enhancing the tranversal transport capacity of the flow. It is used the Phan-Thien-Tanner (PTT) viscoelastic model, and the flow is assumed steady and laminar. The velocity field is first determined through a technique previously developed by the authors, and the energy equation is solved afterward for the temperature field for conditions of constant wall temperature and constant longitudinal temperature gradient. Perturbation analysis is applied around the relaxation time as parameter, wherefrom all orders of velocity and temperature are analytically found up to third order. Plots of results for triangular and square tubes are presented, followed by a discussion of the relevant findings related to interactions among the main variables generated by viscoelastic fluid behaviour.

机译：针对流体的粘弹性引起非圆管中的二次流动的情况，对管道中的传热进行了分析，从而增强了流动的横向传输能力。它使用Phan-Thien-Tanner（PTT）粘弹性模型，并且假定流动稳定且呈层流状态。首先通过作者先前开发的技术确定速度场，然后在壁温恒定和纵向温度梯度恒定的条件下，针对温度场求解能量方程。围绕弛豫时间应用摄动分析作为参数，从中分析得出所有速度和温度阶次，直至三次阶。介绍了三角形和方形管的结果图，然后讨论了与粘弹性流体行为产生的主要变量之间的相互作用有关的相关发现。

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《2002 ASME International Mechanical Engineering Congress and Exposition , Nov 17-22, 2002, New Orleans, Louisiana》|2002年|p.283-289|共7页
会议地点 New Orleans LA(US);New Orleans LA(US)
作者
Mario F. Letelier; Alejandro Mardonez; Dennis A. Siginer;
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Department of Mechanical Engineering University of Santiago of Chile Casilla 10233, Santiago, Chile;

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原文格式 PDF
正文语种 eng
中图分类机械、仪表工业;
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2. Integral Methods of Calculation of Heat Transfer and Drag under Conditions of Turbulent Pipe Flow of Liquid of Variable Properties: Steady-State and Quasi-Steady-State Flows in a Round Pipe with Constant Density of Heat Flux to the Wall [J] . E. P. Valueva High temperature: English translation of teplofizika vysokikh temperatur . 2007,第1期

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4. Experimental study on the characteristics of heat transfer and flow resistance in turbulent pipe flows of viscoelastic-fluid-based Cu nanofluid [J] . Juan-Cheng Yang, Feng-Chen Li, Yu-Rong He, International Journal of Heat and Mass Transfer . 2013,第jula期

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5. Heat transfer in steady viscoelastic flow in pipes of complex shapes [C] . Mario F. Letelier, Alejandro Mardonez, Dennis A. Siginer ASME International Mechanical Engineering Congress and Exposition . 2002

机译：复杂形状管道中稳定粘弹性的热传递
6. AN EXPERIMENTAL AND ANALYTICAL STUDY OF HEAT TRANSFER TO POLYMER SOLUTIONS IN TURBULENT PIPE FLOWS UNDER CONSTANT WALL HEAT FLUX (VISCOELASTIC, NON-NEWTONIAN). [D] . YOON, HYUNG KEE. 1986

机译：恒定壁面热通量（粘弹性，非牛顿）下湍流管道中聚合物溶液传热的实验和分析研究。
7. Particle shape effect on heat transfer performance in an oscillating heat pipe [O] . Yulong Ji, Corey Wilson, Hsiu-hung Chen, 2011

机译：颗粒形状对振荡热管传热性能的影响
8. Discussion: “Steady Laminar Flow Through Twisted Pipes: Fluid Flow in Square Tubes” and “Steady Laminar Flow Through Twisted Pipes: Heat Transfer in Square Tubes” (Masliyah, J. H., and Nandakumar, K., 1981, ASME J. Heat Transfer, 103, pp. 785–790, 791–796) [O] . Z. G. Xu, D. N. Fan 1984

机译：讨论：“通过扭曲管道流动的稳态流动：方形管中的流体流动”通过扭曲管道的稳定层流：方形管中的热转印“（Masliyah，Jh和Nandakumar，K。，1981，Asme J.传热， 103，PP。785-790,791-796）
9. Steady turbulent flow and heat transfer downstream of a sudden enlargement in a pipe of circular cross-section [R] . A. K. Runchal, I. I. T. Kanpur 1971

机译：在圆形横截面的管道中突然增大的下游稳定的湍流和热传递

HEAT TRANSFER IN STEADY VISCOELASTIC FLOW IN PIPES OF COMPLEX SHAPES

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