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http://dx.doi.org/10.3795/KSME-B.2013.37.11.999

Numerical Study on Flow and Heat Transfer Characteristics of Pipes with Various Shapes  

Park, Sang Hyeop (School of Mechanical Engineering, Pusan Nat'l Univ.)
Kim, Sang Keun (School of Mechanical Engineering, Pusan Nat'l Univ.)
Ha, Man Yeong (School of Mechanical Engineering, Pusan Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.37, no.11, 2013 , pp. 999-1007 More about this Journal
Abstract
The present work reports numerical results of the pressure drop and heat transfer characteristics of pipes with various shapes such as circular, elliptical, circumferential wavy and twisted using a three-dimensional simulation. Numerical simulations are calculated for laminar to turbulent flows. The fully developed flow in pipes was modeled using steady incompressible Reynolds-averaged Navier-Stokes (RANS) equations. The friction and Colburn factor of each pipe are compared with those of a circular tube. The overall flow and heat transfer calculations are evaluated by the volume and area goodness factor. Finally, the objective of the investigation is to find a pipe shape that decreases the pressure loss and increases the heat transfer coefficient.
Keywords
Internal Flow; Heat Transfer; Circular; Elliptic; Circumferential Wavy; Twisted;
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