Experimental study of the boundary between single-phase convection and boiling in underheated cryogenic liquids |
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Authors: | Yu A Kirichenko S M Kozlov K V Rusanov E G Tyurina |
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Affiliation: | (1) Physicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov |
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Abstract: | The effect of pressure and underheating on the position of the boundary between heat-transfer regimes in liquid helium and hydrogen is investigated.Notation q
heat flux
- p
pressure
- =Ts–T
underheating
- Ts
saturation temperature
- T
temperature of liquid
- T=Twa – T
Ts=Twa – Ts
- Twa
temperature of heat-emitting surface
- A,a, B, b, C
constants
- m, n
indices
- Nu
Nusselt number
- Ra
Rayleigh number
-
thermal conductivity
-
coefficient of cubical expansion
-
kinematic viscosity
- g
acceleration
-
standard deviation
Indices 01
conditions of convection-boiling transition
- 02
conditions of boiling-convection transition
Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 42, No. 1, pp. 5–11, January, 1982. |
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Keywords: | |
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