Numerical calculation of heat transfer coefficient in cooled crescent gap of self-lubricating bearing
The paper proposes methods for numerically and experimentally determining the heat transfer coefficient of a self-lubricating bearing of a turbine unit brought to the surface of a crescent channel. The method of numerical research allows you to get the criterion heat transfer equations that are...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Omsk State Technical University, Federal State Autonoumos Educational Institution of Higher Education
2019-11-01
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| Series: | Омский научный вестник |
| Subjects: | |
| Online Access: | https://www.omgtu.ru/general_information/media_omgtu/journal_of_omsk_research_journal/files/arhiv/2019/5%20(167)/15-20%20%D0%A0%D0%B0%D0%B9%D0%BA%D0%BE%D0%B2%D1%81%D0%BA%D0%B8%D0%B9%20%D0%9D.%20%D0%90.,%20%D0%97%D0%B0%D1%85%D0%B0%D1%80%D0%BE%D0%B2%20%D0%92.%20%D0%90..pdf |
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| Summary: | The paper proposes methods for numerically and experimentally
determining the heat transfer coefficient of a self-lubricating
bearing of a turbine unit brought to the surface of a crescent
channel. The method of numerical research allows you to get the
criterion heat transfer equations that are necessary in engineering
methods for designing self-lubricating bearing assemblies. The
results of an experimental study allow us to evaluate the adequacy
of the proposed numerical method. The discrepancy between the
values of heat transfer coefficients obtained by a numerical method
using the thermal energy model and as a result of experimental
studies on average does not exceed 7%. A significant effect of
the mass flow rate of the cooling medium on the heat transfer
coefficient is revealed. The values of the heat transfer coefficient
in the range of studies ranged from 12 to 85 W/m2K. |
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| ISSN: | 1813-8225 2541-7541 |