publication . Article . 1998

Flow and Mass Transfer Performance in Short Pin-Fin Channels with Different Fin Shapes

R. J. Goldstein; S. B. Chen;
Open Access English
  • Published: 01 Jan 1998 Journal: International Journal of Rotating Machinery (issn: 1023-621X, Copyright policy)
  • Publisher: Hindawi Publishing Corporation
Abstract
The mass transfer (analogous to heat transfer) and pressure loss characteristics of staggered short pin-fin arrays are investigated experimentally in the range of Reynolds number 3000 to 18,000 based on fin diameter and mean approach-flow velocity. Three different shapes of fins with aspect ratio of 2 are examined: one uniform-diameter circular fin (UDCF) and two stepped-diameter circular fins (SDCF1 and SDCF2). Flow visualization using oil-lampblack reveals complex flow characteristics associated with the repeated production of horseshoe vortices and fin wakes, and the interactions among these. The SDCF1 and SDCF2 arrays show flow characteristics different from...
Subjects
free text keywords: Mass/heat transfer, Performance., TA1-2040, Visualization, Short pin-fin array, Engineering (General). Civil engineering (General)
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publication . Article . 1998

Flow and Mass Transfer Performance in Short Pin-Fin Channels with Different Fin Shapes

R. J. Goldstein; S. B. Chen;