Browse > Article
http://dx.doi.org/10.5916/jkosme.2013.37.8.905

Numerical analysis of turbulent flows in the helically coiled pipes of heat transfer  

Kwag, Seung-Hyun (Department of Computer-Aided-Engineering, Halla University)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.37, no.8, 2013 , pp. 905-910 More about this Journal
Abstract
The flow analysis has been made by applying the turbulent models in the helically coiled tubes of heat transfer. The k-${\varepsilon}$ and Spalart-Allmaras turbulent models are used in which the structured grid is applied for the simulation. The velocity vector, the pressure contour, the change of residuals along the iteration number and the friction factors are simulated by solving the Navier-Stokes equations to make clear the Reynolds number effect. The helical tube increases the centrifugal forces by which the wall shear stress become larger on the outer side of the tube. The centrifugal force makes the heat transfer rate locally larger due to the increase of the flow energy, which finds out the close relationship between the pressure drop and friction factor in the internal flow. The present numerical results are compared with others, for example, in the value of friction factor for validation.
Keywords
Helically coiled pipes; Numerical analysis; Turbulent flow; Heat transfer; Finite volume method;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 R. A. Seban and E. F. McLaughlin, "Heat transfer in tube coils with laminar and turbulent flow", International Journal Heat Mass Transfer 6, vol. 6, no. 5, pp. 387-395, 1963.   DOI   ScienceOn
2 C. M. White, "Fluid friction and its relation to heat transfer," Transaction Institute Chemical Engineering(London), vol. 10, pp. 66-86, 1932.
3 P. Mishra and S. N. Gupta, "Momentum transfer in curved pipes, 1. newtonian fluids," Industrial Engineering Chemical Process Des. Dev., vol. 1, pp. 130-137, 1979.
4 S. Ali, "Pressure drop correlations for flow through regular helical coil tubes," The Japan Society of Fluid Mechanics and Elsevier Science, vol. 28, no. 4, pp. 295- 310, 2001.
5 H. Ito, "Friction factors for turbulent flow in curved pipes," Transaction Am. Society Mechanical Engineering. Journal Basic Engineering D81, pp. 123-134, 1959.
6 B. J. Boersma and F. T. M. Nieuwstadt, "Large-eddy simulation of turbulent flow in a curved pipe," Journal Fluids Energy, vol. 118, pp. 248-254, 1996.   DOI   ScienceOn
7 C. Moulinec, M. J. B. M. Pourquie, B. J. Boersma, T. Buchal, and F. T. M. Nieuwstadt, "Direct numerical simulation on a cartesian mesh of the flow through a tube bundle," International Journal of Computational Fluid Dynamics, vol. 18, no. 1, pp. 1-14, 2004.   DOI   ScienceOn
8 J. H. Bae, J. Y. Yoo, and H. Choi, "Direct numerical simulation of turbulent heat transfer to fluids at supercritical pressure flowing in vertical tubes," Transactions of the Korean Society of Mechanical Engineers B, vol. 28, no. 11, pp. 1302-1314, 2004 (in Korean).   과학기술학회마을   DOI   ScienceOn
9 R. C. Xin, A. Awwad, Z. F. Dong, and M. A. Ebadian, "An experimental study of single-phase and two-phase flow pressure drop in annular helicoidal pipes," International Journal Heat Fluid Flow, vol. 18, pp. 482-488, 1997.   DOI   ScienceOn
10 B. E. Launder and D. B. Spalding, Lecture in Math Models of Turbulence, Academic Press, London, England, 1972.
11 P. R. Spalart and M. Shur, "On the sensitization of turbulence models to rotation and curvature," Aerospace Science Technology, vol. 1, no. 5, pp. 297-302, 1997.   DOI   ScienceOn