Mixed convective heat transfer of water in a pipe under supercritical pressure

✍ Scribed by Feng Xu; Liejin Guo; Bofeng Bai

• Publisher: John Wiley and Sons
• Year: 2005
• Tongue: English
• Weight: 719 KB
• Volume: 34
• Category: Article
• ISSN: 1099-2871
• DOI: 10.1002/htj.20079

✦ Synopsis

Abstract

Because of the rapid properties variation of fluid under supercritical pressure, there is a violent secondary flow in a heated pipe, which will certainly complicate the heat transfer of fluid in a pipe under supercritical pressure. In this paper, a numerical study is conducted for the laminar developing mixed convective heat transfer of water under supercritical pressure. The velocity field and temperature field are given, and the influence of different parameters on flow and heat transfer is investigated in detail. The results show that secondary flow has a great influence on velocity and temperature distributions and thus affects the friction factor and the Nusselt number remarkably. © 2005 Wiley Periodicals, Inc. Heat Trans Asian Res, 34(8): 608–619, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/htj.20079