Assessment of unsteadiness modelling for transient natural convection
- Submitting institution
-
University of Oxford
- Unit of assessment
- 12 - Engineering
- Output identifier
- 9498
- Type
- D - Journal article
- DOI
-
10.1115/1.4037721
- Title of journal
- Journal of Engineering for Gas Turbines and Power: Transactions of the ASME
- Article number
- 012605
- First page
- -
- Volume
- 140
- Issue
- 1
- ISSN
- 0742-4795
- Open access status
- Compliant
- Month of publication
- September
- Year of publication
- 2017
- URL
-
-
- Supplementary information
-
-
- Request cross-referral to
- -
- Output has been delayed by COVID-19
- No
- COVID-19 affected output statement
- -
- Forensic science
- No
- Criminology
- No
- Interdisciplinary
- No
- Number of additional authors
-
3
- Research group(s)
-
-
- Proposed double-weighted
- No
- Reserve for an output with double weighting
- No
- Additional information
- Flexible turbine operations with faster start-ups/shut-downs are needed by emerging renewable power generation. Design-analyses of corresponding thermal heating/cooling process have to accommodate hugely disparate time scales. The problem is exacerbated for natural convection problems, for which convectional formulations are restrictively small. Thus the conventional fluid-solid coupled conjugate heat transfer (CHT) is prohibitively time-consuming for natural convection related transient CHT problems. The present work uses a new dual stepping formulation for CHT, and shows how the same accuracy results can be achieved with an up to 50 times speed-up (recipient of the 2017 ASME/IGTI Steam Turbine Best Paper prize).
- Author contribution statement
- -
- Non-English
- No
- English abstract
- -