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Study of flow on the surface of fins on cross-finned tubes

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Abstract

The visualization method was used to study the washing of a flow of air over the surface of fins on tubes with external fins in an annular arrangement.

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Abbreviations

S1 :

transverse spacing of tubes in bundle

S2 :

lengthwise spacing of tubes in bundle

d:

diameter of tube bearing the fins

h:

fin height

t:

fin spacing

δ:

fin thickness

ψ:

finning coefficient

Re:

Reynolds number calculated from the velocity of the incoming flow U and the diameter d

xos :

size of the separation zone A on the OX axis

α:

heat-transfer coefficient

Literature cited

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Authors and Affiliations

  1. Kiev Polytechnic Institute, USSR

    E. N. Pis'mennyi

Authors
  1. E. N. Pis'mennyi
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Additional information

Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 47, No. 1, pp. 28–34, July, 1984.

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Pis'mennyi, E.N. Study of flow on the surface of fins on cross-finned tubes. Journal of Engineering Physics 47, 761–765 (1984). https://doi.org/10.1007/BF00832588

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  • DOI: https://doi.org/10.1007/BF00832588

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