Two-phase flow simulation of mist film cooling with deposition for various boundary conditions
(2017) In Numerical Heat Transfer; Part A: Applications 71(9). p.895-909- Abstract
Air film cooling is a conventional cooling technique that has been successfully used for gas turbine hot-section components, such as combustor liners, combustor transition pieces, and turbine vanes and blades. However, the increased benefit seems to approach a limit. This paper investigates the film cooling effectiveness considering mist injection. All the studies for various boundary conditions are conducted numerically, including the effects of droplet size, the flow rates of droplet injection, and the coolant air. Film cooling is also affected by the interaction between deposition and mist injection. A deposition configuration is located near the film hole with an inclination angle of 35°. Results show that the combined effect of... (More)
Air film cooling is a conventional cooling technique that has been successfully used for gas turbine hot-section components, such as combustor liners, combustor transition pieces, and turbine vanes and blades. However, the increased benefit seems to approach a limit. This paper investigates the film cooling effectiveness considering mist injection. All the studies for various boundary conditions are conducted numerically, including the effects of droplet size, the flow rates of droplet injection, and the coolant air. Film cooling is also affected by the interaction between deposition and mist injection. A deposition configuration is located near the film hole with an inclination angle of 35°. Results show that the combined effect of injection and deposition is to weaken the film cooling effectiveness, especially upstream of x/d = 19. For the coolant air at a low speed, the mist injection cannot provide better cooling protection than without the mist injection.
(Less)
- author
- Wang, Jin LU ; Li, Qian Qian ; Sundén, Bengt LU ; Baleta, Jakov and Vujanović, Milan
- organization
- publishing date
- 2017-05-03
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Numerical Heat Transfer; Part A: Applications
- volume
- 71
- issue
- 9
- pages
- 15 pages
- publisher
- Taylor & Francis
- external identifiers
-
- wos:000403797900001
- scopus:85020667274
- ISSN
- 1040-7782
- DOI
- 10.1080/10407782.2017.1326790
- language
- English
- LU publication?
- yes
- id
- 1b6739ec-0077-41b4-9511-a881334afd46
- date added to LUP
- 2017-07-04 13:38:51
- date last changed
- 2025-01-07 16:37:47
@article{1b6739ec-0077-41b4-9511-a881334afd46,
abstract = {{<p>Air film cooling is a conventional cooling technique that has been successfully used for gas turbine hot-section components, such as combustor liners, combustor transition pieces, and turbine vanes and blades. However, the increased benefit seems to approach a limit. This paper investigates the film cooling effectiveness considering mist injection. All the studies for various boundary conditions are conducted numerically, including the effects of droplet size, the flow rates of droplet injection, and the coolant air. Film cooling is also affected by the interaction between deposition and mist injection. A deposition configuration is located near the film hole with an inclination angle of 35°. Results show that the combined effect of injection and deposition is to weaken the film cooling effectiveness, especially upstream of x/d = 19. For the coolant air at a low speed, the mist injection cannot provide better cooling protection than without the mist injection.</p>}},
author = {{Wang, Jin and Li, Qian Qian and Sundén, Bengt and Baleta, Jakov and Vujanović, Milan}},
issn = {{1040-7782}},
language = {{eng}},
month = {{05}},
number = {{9}},
pages = {{895--909}},
publisher = {{Taylor & Francis}},
series = {{Numerical Heat Transfer; Part A: Applications}},
title = {{Two-phase flow simulation of mist film cooling with deposition for various boundary conditions}},
url = {{http://dx.doi.org/10.1080/10407782.2017.1326790}},
doi = {{10.1080/10407782.2017.1326790}},
volume = {{71}},
year = {{2017}},
}