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Calculating the hydraulic resistance of foam flows in tubes

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Abstract

Formulas are derived for calculating the hydraulic resistance factor of a foam flow for isothermal flow in a tube with allowance for compressibility, biphasality, and a change in the structure of the foam during its movement.

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Abbreviations

p:

pressure in a cross section of the tube

Δp:

total pressure drop on a section of the tube

Δpfr :

pressure drop due to friction on a section of the tube

u:

mean flow rate

γ:

specific gravity

K:

expansion ratio

T:

flow temperature

R:

universal gas constant

G:

weight flow rate

χ:

weight gas flow rate

¯d:

weighted mean diameter of bubble

σ:

surface tension coefficient

D:

tube diameter

L:

length of section of tube

F:

cross-sectional area of tube

′:

liquid phase

0:

atmospheric conditions for p=9.8·104 Pa

Literature cited

  1. A. A. Kachalov, “Movement of air-mechanical foam along pipes,” Tr. Vysshei Shkoly MVD SSSR, No. 26, 91–92 (1970).

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  2. B. B. Guliev, “Investigation of certain properties of a two-phase foam and its application in washing sand stoppers,” Author's Abstract of Candidate's Dissertation, Baku (1970) (Azizbekov Azerbaidzhan Institute of Petroleum and Chemistry).

  3. V. E. Nakoryakov et al., Investigation of Turbulent Flows of Two-Phase Media (S. S. Kutateladze, editor), Institute of Thermophysics, Siberian Branch, Academy of Sciences of the USSR, Novosibirsk (1973), pp. 62–64.

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  4. V. Shugaev and S. Sorokin, “Hydraulic resistance of a two-phase composition,” Zh. Tekh. Fiz.,9, No. 20, 1856–1859 (1939).

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  5. V. K. Tikhomirov, Foams. Theory and Practice in Their Manufacture and Destruction [in Russian], Khimiya, Moscow (1975), pp. 93–96.

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Author information

Authors and Affiliations

  1. Institute of Thermophysics, Siberian Branch, Academy of Sciences of the Ukrainian SSR, USSR

    V. N. Feklistov

Authors
  1. V. N. Feklistov
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Additional information

Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 39, No. 4, pp. 624–628, October, 1980.

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Feklistov, V.N. Calculating the hydraulic resistance of foam flows in tubes. Journal of Engineering Physics 39, 1066–1069 (1980). https://doi.org/10.1007/BF00822135

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  • DOI: https://doi.org/10.1007/BF00822135

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