[1]季银炼,张钧波,张 敏.膨胀性非牛顿流体在偏心圆环管中的传热特性研究[J].南京师范大学学报(工程技术版),2017,17(02):037.[doi:10.3969/j.issn.1672-1292.2017.02.006]
 Ji Yinlian,Zhang Junbo,Zhang Min.Heat Transfer Characteristics for non-NewtonianDilatant Fluid in Eccentric Annular Channel[J].Journal of Nanjing Normal University(Engineering and Technology),2017,17(02):037.[doi:10.3969/j.issn.1672-1292.2017.02.006]
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膨胀性非牛顿流体在偏心圆环管中的传热特性研究
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南京师范大学学报(工程技术版)[ISSN:1006-6977/CN:61-1281/TN]

卷:
17卷
期数:
2017年02期
页码:
037
栏目:
能源与动力工程
出版日期:
2017-06-30

文章信息/Info

Title:
Heat Transfer Characteristics for non-NewtonianDilatant Fluid in Eccentric Annular Channel
文章编号:
1672-1292(2017)02-0037-05
作者:
季银炼1张钧波1张 敏2
(1.南京师范大学泰州学院,江苏 泰州 225300)(2.南京理工大学能源与动力工程学院,江苏 南京 210009)
Author(s):
Ji Yinlian1Zhang Junbo1Zhang Min2
(1.Taizhou College,Nanjing Normal University,Taizhou 225300,China)(2.School of Energy and Power Engineering,Nanjing University of Science and Technology,Nanjing 210009,China)
关键词:
有限体积法基元中心法膨胀性流体偏心圆环通道
Keywords:
FVMcell-based central methoddilatant fluideccentric annular channel
分类号:
TK124
DOI:
10.3969/j.issn.1672-1292.2017.02.006
文献标志码:
A
摘要:
本文以剪切应力符合Ostwald-de Waele关系式,幂律因子n>1膨胀性非牛顿流体为研究对象. 针对膨胀性非牛顿流体粘性系数高阶非线性问题,在非结构化网格中,采用基元中心法对粘性系数进行离散,并对膨胀性流体在偏心圆环通道中的传热特性进行了研究. 研究表明,流体通道偏心率和半径比都会引起圆环通道内温度的周向分布不均匀,且偏心率和半径比越大,周向分布不均匀性越强烈. 通道的几何结构对努谢尔特数的影响远大于幂律因子的影响.
Abstract:
This paper studies dilatant fluid in accordance with Ostwald-de Waele relational formula,with power-law factor greater than 1. It aims to solve the problem of the highly non-linear features of the non-Newtonian fluid viscosity coefficient. Cell-based central method is used for the non-linear viscosity coefficient discretization in unstructured grids. It studies heat transfer of dilatant fluid in eccentric annular channel. The simulation results show that the eccentricity and radius ratio of annular channel can lead to the asymmetrical distribution of circumferential temperature and velocity. Effects of geometric structure of channel on the Nusselt number are far greater than effects of power factor.

参考文献/References:

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相似文献/References:

[1]张钧波,张 敏.剪切稠化流体在偏心圆环通道中的流动特性研究[J].南京师范大学学报(工程技术版),2016,16(04):046.[doi:10.3969/j.issn.1672-1292.2016.04.008]
 Zhang Junbo,Zhang Min.Study on Characteristics of Dilatant Fluid Flows in Eccentric Annular Channel[J].Journal of Nanjing Normal University(Engineering and Technology),2016,16(02):046.[doi:10.3969/j.issn.1672-1292.2016.04.008]

备注/Memo

备注/Memo:
收稿日期:2016-01-03.
基金项目:泰州市科技支撑社会发展计划(指导性)项目(SSF20160088).
通讯联系人:季银炼,讲师,研究方向:流体传热传质. E-mail:jiyinlian@163.com
更新日期/Last Update: 2017-06-30