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Numerical Heat Transfer, Part A: Applications
An International Journal of Computation and Methodology
Volume 53, 2008 - Issue 9
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Original Articles

Numerical Investigation of Forced Fluid Flow and Heat Transfer from Conically Coiled Pipes

I. Conté Laboratory of Phase-Change and Interfacial Transport Phenomena, Department of Thermal Engineering, Tsinghua University, Beijing, People's Republic of China
,
X. F. Peng Laboratory of Phase-Change and Interfacial Transport Phenomena, Department of Thermal Engineering, Tsinghua University, Beijing, People's Republic of ChinaCorrespondence[email protected]
&
B. X. Wang Laboratory of Phase-Change and Interfacial Transport Phenomena, Department of Thermal Engineering, Tsinghua University, Beijing, People's Republic of China
Pages 945-965 | Received 29 Jun 2007, Accepted 12 Oct 2007, Published online: 04 Jan 2008
 
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Abstract

Numerical investigations were conducted to understand forced laminar fluid flow over coiled pipes with circular cross-section. The focus was addressed on exploring the convective heat transfer from conical and helical coils with comparative studies. The same numerical investigation method was applied to the two differentially coiled pipes (helical and conical) and for different Reynolds numbers corresponding to five cases of exterior flow arrangement. The results show better heat transfer performance for cases of conical coils where much flow turbulence was observed due to an effective flow arrangement.

This research is currently supported by the National High Technological Development Program (“863” Program) through contract No. 2007AA05Z200.

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