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Assessment of unsteadiness modelling for transient natural convection

Abstract:

Turbine flexible operations with faster startups/shutdowns are required to accommodate emerging renewable power generations. A major challenge in transient thermal design and analysis is the time scale disparity. For natural cooling, the physical process is typically in hours, but on the other hand, the time step sizes typically usable tend to be very small (sub-seconds) due to the numerical stability requirement for natural convection as often observed. An issue of interest is what time step...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted Manuscript

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Publisher copy:
10.1115/1.4037721

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Department:
St Hughs College
Role:
Author
Engineering and Physical Science Research Council More from this funder
Publisher:
American Society of Mechanical Engineers Publisher's website
Journal:
Journal of Engineering for Gas Turbines and Power: Transactions of the ASME Journal website
Volume:
140
Issue:
1
Pages:
Article: 012605
Publication date:
2017-09-26
Acceptance date:
2017-07-18
DOI:
EISSN:
1528-8919
ISSN:
0742-4795
Pubs id:
pubs:713091
URN:
uri:4e4503c0-bb8a-46f2-b396-e38072d7d532
UUID:
uuid:4e4503c0-bb8a-46f2-b396-e38072d7d532
Local pid:
pubs:713091
Paper number:
1

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