Abstract
An experimental installation for the study of the heat transfer of cylindrical bodies in interaction with multijet streams is described. The test data are generalized in criterial dependences with allowance for the range of variation of the heights of rise of the cylinders above the jet grids.
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Abbreviations
- D, d:
-
diameters of cylinders and of openings of jet grid, m
- R:
-
radius of jet grid, m
- h, h=h/d:
-
absolute and relative heights of rise of cylinder above jet grid
- S1, S2 :
-
longitudinal and transverse distances between rows of openings in jet grid, m
- w:
-
average discharge velocity of jets, m/sec
- α, αϕ:
-
average and local coefficients of heat transfer, W/m2·deg
- λ, υ:
-
coefficients of thermal conductivity and kinematic viscosity, W/m·deg, m2/sec
- Nud=αd/λ:
-
Nusselt number
- Red=wd/υ:
-
Reynolds number
Literature cited
V. P. Isachenko et al., Heat Transfer [in Russian], Énergiya, Moscow (1969).
A. A. Zhukauskas et al., Heat Transfer of Bundles of Pipes in Transverse Fluid Flow [in Russian], Mintis, Vilnius (1968).
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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 37, No. 5, pp. 773–776, November, 1979.
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Syromyatnikov, N.I., Vasanova, L.K., Bader, V.I. et al. Heat transfer of cylindrical bodies when a system of round jets flows over them. Journal of Engineering Physics 37, 1259–1261 (1979). https://doi.org/10.1007/BF01102216
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DOI: https://doi.org/10.1007/BF01102216