Effects of deposition locations on film cooling with and without a mist injection
(2016) In Numerical Heat Transfer; Part A: Applications 70(10). p.1072-1086- Abstract
The adiabatic film-cooling effectiveness on a thermal barrier coating surface is investigated numerically. A film-cooling hole with an inclination angle of 35° is placed upstream the deposition configuration. The depositions are arranged on the external wall with three different positions. For no-mist models, the cooling performances downstream the wall are investigated for the blowing ratios of 0.5, 0.75, and 1.0. Results show that the adiabatic film-cooling effectiveness without surface deposition is decreased by increasing the blowing ratio. To investigate the effects of both different locations and 4.4% mist injection on the film cooling, a discrete phase model (DPM) is used. It is found that the film-cooling effectiveness is... (More)
The adiabatic film-cooling effectiveness on a thermal barrier coating surface is investigated numerically. A film-cooling hole with an inclination angle of 35° is placed upstream the deposition configuration. The depositions are arranged on the external wall with three different positions. For no-mist models, the cooling performances downstream the wall are investigated for the blowing ratios of 0.5, 0.75, and 1.0. Results show that the adiabatic film-cooling effectiveness without surface deposition is decreased by increasing the blowing ratio. To investigate the effects of both different locations and 4.4% mist injection on the film cooling, a discrete phase model (DPM) is used. It is found that the film-cooling effectiveness is improved remarkably from the deposition position to the wall downstream. In addition, deposition formation at the middle location shows a good cooling effectiveness, but the lowest value of the film-cooling effectiveness occurs upstream the deposition position.
(Less)
- author
- Wang, Jin ; Cui, Pei ; Sundén, Bengt LU and Yang, Ran
- organization
- publishing date
- 2016-11
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Numerical Heat Transfer; Part A: Applications
- volume
- 70
- issue
- 10
- pages
- 15 pages
- publisher
- Taylor & Francis
- external identifiers
-
- wos:000388424600002
- scopus:84992073964
- ISSN
- 1040-7782
- DOI
- 10.1080/10407782.2016.1230395
- language
- English
- LU publication?
- yes
- id
- b6f21777-fc14-4e59-ad43-6dd13c7f52f6
- date added to LUP
- 2016-11-09 09:19:57
- date last changed
- 2025-01-12 14:51:27
@article{b6f21777-fc14-4e59-ad43-6dd13c7f52f6,
abstract = {{<p>The adiabatic film-cooling effectiveness on a thermal barrier coating surface is investigated numerically. A film-cooling hole with an inclination angle of 35° is placed upstream the deposition configuration. The depositions are arranged on the external wall with three different positions. For no-mist models, the cooling performances downstream the wall are investigated for the blowing ratios of 0.5, 0.75, and 1.0. Results show that the adiabatic film-cooling effectiveness without surface deposition is decreased by increasing the blowing ratio. To investigate the effects of both different locations and 4.4% mist injection on the film cooling, a discrete phase model (DPM) is used. It is found that the film-cooling effectiveness is improved remarkably from the deposition position to the wall downstream. In addition, deposition formation at the middle location shows a good cooling effectiveness, but the lowest value of the film-cooling effectiveness occurs upstream the deposition position.</p>}},
author = {{Wang, Jin and Cui, Pei and Sundén, Bengt and Yang, Ran}},
issn = {{1040-7782}},
language = {{eng}},
number = {{10}},
pages = {{1072--1086}},
publisher = {{Taylor & Francis}},
series = {{Numerical Heat Transfer; Part A: Applications}},
title = {{Effects of deposition locations on film cooling with and without a mist injection}},
url = {{http://dx.doi.org/10.1080/10407782.2016.1230395}},
doi = {{10.1080/10407782.2016.1230395}},
volume = {{70}},
year = {{2016}},
}