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Journal of Enhanced Heat Transfer
Импакт фактор: 0.562 5-летний Импакт фактор: 0.605 SJR: 0.175 SNIP: 0.361 CiteScore™: 0.33

ISSN Печать: 1065-5131
ISSN Онлайн: 1026-5511

Выпуски:
Том 26, 2019 Том 25, 2018 Том 24, 2017 Том 23, 2016 Том 22, 2015 Том 21, 2014 Том 20, 2013 Том 19, 2012 Том 18, 2011 Том 17, 2010 Том 16, 2009 Том 15, 2008 Том 14, 2007 Том 13, 2006 Том 12, 2005 Том 11, 2004 Том 10, 2003 Том 9, 2002 Том 8, 2001 Том 7, 2000 Том 6, 1999 Том 5, 1998 Том 4, 1997 Том 3, 1996 Том 2, 1995 Том 1, 1994

Journal of Enhanced Heat Transfer

DOI: 10.1615/JEnhHeatTransf.2012001371
pages 149-159

CORRELATION FOR CONVECTIVE HEAT TRANSFER IN TURBULENT PULSATING FLOW AT LARGE REYNOLDS NUMBER INSIDE CIRCULAR PIPE

Hua Li
Institute of Energy and Power Engineering, Engineering Research Center of Pulse Technology, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
Yingjie Zhong
Institute of Energy and Power Engineering, Engineering Research Center of Pulse Technology, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
Kai Deng
Institute of Energy and Power Engineering, Engineering Research Center of Pulse Technology, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
Zangjian Yang
Institute of Energy and Power Engineering, Engineering Research Center of Pulse Technology, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
Yanjun Hu
Institute of Energy and Power Engineering, Engineering Research Center of Pulse Technology, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
Zengliang Gao
Institute of Process Equipment and Control Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China

Краткое описание

Convective heat transfer in turbulent pulsating flow was experimentally investigated in this study. Pulsating airflow was produced using a device on the basis of a design idea of on-and-off flow passage. The pulsating flow rate was measured by means of converting a pulsating flow to a steady flow. Both the flow-rate measurement and the generation of oscillatory heat transfer were conducted simultaneously, performing some technical measures. A new dimensionless pulsation amplitude derived from the pressure transfer function in the test section was proposed to describe the amplitude of pulsating flow. It is concluded the averaged Nusselt value of heat transfer in turbulent pulsating pipe flow is one of the functions of the Reynolds number, pulsation frequency, and pulsation amplitude. A correlation for the functional relationship was obtained by means of linear regression analysis of the experimental results, and validated and evaluated by three aspects of discussion. This correlation will be useful for heat transfer calculation of pulsation thermal equipment.

Ключевые слова: pulsating flow, heat transfer, turbulent, correlation

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