In:
Journal of Physics: Conference Series, IOP Publishing, Vol. 1948, No. 1 ( 2021-06-01), p. 012070-
Abstract:
In order to study the influence of multi-point leakage on the flow field in the bellows and the quantitative evaluation method of air leakage based on temperature, the Fluent software was used to consider the fluid-solid coupling heat transfer in the bellows and the convection and radiation heat dissipation on the outer wall of the bellows. The multi-point leakage environment was set up, and the numerical simulation model of single-side sintered bellows-branch pipe section was established. The temperature distribution and flow field distribution of the fluid on the outer wall and inside the bellows are solved. Infrared thermal imaging was used to extract the temperature trend of the local leakage point of 5# bellows, and compared with the simulation results, it was found that the closer to the leakage point, the faster the temperature dropped, and the two had a strong correlation, which proved that it was feasible to use numerical simulation to study the air leakage of bellows. Through the analysis of different leakage forms, it is found that the influence range and intensity of single-point leakage and multi-point leakage on the field quantity are different. The research method lays a solid foundation for the in-depth study of temperature-based detection algorithm.
Type of Medium:
Online Resource
ISSN:
1742-6588
,
1742-6596
DOI:
10.1088/1742-6596/1948/1/012070
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2021
detail.hit.zdb_id:
2166409-2
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