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Investigations on Friction Resistance of Forced Circulation in a Circular Tube Under Inclination and Rolling Conditions

[+] Author Affiliations
Sijia Du

Tsinghua University, Beijing; Nuclear Power Institute of China, Chengdu, China

Hong Zhang

Nuclear Power Institute of China, Chengdu, China

Paper No. ICONE18-30029, pp. 975-980; 6 pages
doi:10.1115/ICONE18-30029
From:
  • 18th International Conference on Nuclear Engineering
  • 18th International Conference on Nuclear Engineering: Volume 4, Parts A and B
  • Xi’an, China, May 17–21, 2010
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 978-0-7918-4932-3
  • Copyright © 2010 by ASME

abstract

The friction resistance under marine conditions is very important to a marine reactor system in the ocean. The traditional empirical or semi-empirical relationships were used in thermo-hydraulic system programmes at the present time, while the applicability of these relationships under ocean conditions was not validated adequately. Experiments have been conducted to study the friction resistance of forced circulation when the test tube was at inclined attitude and rolling model. The experimental setup consists of stainless steel cylinder tube as test section with 10mm inside diameter and 1200mm length, is subjected to a constant wall heat flux boundary condition. The investigation covers Reynolds number range from 1.0e+4 to 1.2e+5, and the test section angles of inclination including 10°, 20° and 30°, amplitudes of rolling angle including 10°, 15° and 20° with the rolling periods of 10s, 15s and 20s. Pressure drop was measured to calculate the coefficient of friction resistance. CFD method was used to simulate the flow characteristics under inclination and rolling conditions, the results were compared with experimental data. The investigations showed that the influence of inclination and rolling to friction coefficient is not obvious.

Copyright © 2010 by ASME

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