Two-phase (gas-liquid) flow phenomena—III The calculation of heat transfer in a vertical long-tube evaporator

1961 ◽  
Vol 16 (3-4) ◽  
pp. 222-230 ◽  
Author(s):  
G.H. Anderson ◽  
G.G. Haselden ◽  
B.G. Mantzouranis
Keyword(s):  
Heat Transfer ◽  
Liquid Flow ◽  
Two Phase ◽  
Flow Phenomena ◽  
Gas Liquid Flow

Numerical modeling of the influence of bubbles on flow and heat transfer in the descending gas-liquid flow in a pipe

2012 ◽  
Vol 9 (1) ◽  
pp. 131-135
Author(s):  
M.A. Pakhomov
Keyword(s):  
Heat Transfer ◽  
Gas Phase ◽  
Liquid Flow ◽  
Bubble Diameter ◽  
Gas Content ◽  
Two Phase ◽  
Eulerian Description ◽  
Flow And Heat Transfer ◽  
Gas Liquid Flow ◽  
The Mathematical Model

The paper presents the results of modeling the dynamics of flow, friction and heat transfer in a descending gas-liquid flow in the pipe. The mathematical model is based on the use of the Eulerian description for both phases. The effect of a change in the degree of dispersion of the gas phase at the input, flow rate, initial liquid temperature and its friction and heat transfer rate in a two-phase flow. Addition of the gas phase causes an increase in heat transfer and friction on the wall, and these effects become more noticeable with increasing gas content and bubble diameter.

Two-phase (gas-liquid) flow phenomena—IV

1962 ◽  
Vol 17 (10) ◽  
pp. 751-769 ◽  
Author(s):  
G.H. Anderson ◽  
G.G. Haselden ◽  
B.G. Mantzouranis
Keyword(s):  
Liquid Flow ◽  
Two Phase ◽  
Flow Phenomena ◽  
Gas Liquid Flow

Two-phase (gas/liquid) flow phenomena—II

1960 ◽  
Vol 12 (4) ◽  
pp. 233-242 ◽  
Author(s):  
G.H. Anderson ◽  
B.G. Mantzouranis
Keyword(s):  
Liquid Flow ◽  
Two Phase ◽  
Flow Phenomena ◽  
Gas Liquid Flow

Heat Transfer in Gas-Liquid Flow in a Triangular Arrranged Rod Bundle

2014 ◽  
Author(s):  
O. N. Kashinsky ◽  
P. D. Lobanov ◽  
A. S. Kurdyumov ◽  
N. A. Pribaturin ◽  
S. E. Volkov
Keyword(s):  
Heat Transfer ◽  
Gas Phase ◽  
Void Fraction ◽  
Liquid Flow ◽  
Local Heat Transfer ◽  
Local Heat ◽  
Spacer Grid ◽  
Two Phase ◽  
High Heat Transfer ◽  
Gas Liquid Flow

An experimental study of gas-liquid flow in a vertical bundle of rods in a hexagonal arrangement with spacer grids was performed. The test section was a bundle consisted of 37 rods. Experiments were performed in system water – air at room temperature. New information about characteristics of two-phase flow near a spacer grid is presented. A comparison of distribution of local heat transfer from the central rod surface and distribution of local void fraction around this rod for two ways of gas phase addition was performed. A non uniform void profile around the central rod of the bundle was obtained for both cases. Just downstream the spacer grid an increase of void fraction was obtained Gas addition to the flow results in heat transfer enhancement. This is especially clear for the case of gas supply by a single nozzle. In this case high void fraction and high heat transfer coefficient were observed in one of the subchannels. The data obtained allow to estimate the transfer of gas bubbles in rod bundles and heat transfer augmentation by the addition of gas phase into the coolant flow.

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