- Tytuł:
- Cooling holes with different structures effects on coolant cross flow and heat transfer at the outlet of the combustion chamber
- Autorzy:
-
Kianpour, Ehsan
Sidik, Nor Azwadi Che - Powiązania:
- https://bibliotekanauki.pl/articles/2052246.pdf
- Data publikacji:
- 2021
- Wydawca:
- Politechnika Koszalińska. Wydawnictwo Uczelniane
- Tematy:
-
gas turbine engine
film cooling
combustor simulator
trench hole
dilution hole
gazowy silnik turbinowy
symulator komory spalania
otwór wykopu
otwór rozcieńczający - Opis:
- The major effects of cylindrical and row trenched cooling holes with angles of alpha=30, beta=0, alpha=40, beta=0 and alpha=50, beta=0 at BR=3.18 on the effectiveness of film cooling near the combustor end wall surface is an important subject to study in detail. In the current study, researchers used a FLUENT package 16/11 to simulate a 3-D model of a Pratt and Whitney gas turbine engine. In this research, RNG turbulence model K-ε model was used to analyze the flow behavior on the passage ways of internal cooling. In the combustor simulator, the dilution jets and cooling flow staggered in the streamwise direction and aligned in the spanwise direction as well. In comparison with the baseline case of cooling holes, the application of trenched hole near the end wall surface increased the effectiveness of film cooling up to 100% for different trench cases.
- Źródło:
-
Journal of Mechanical and Energy Engineering; 2021, 5, 2; 141-148
2544-0780
2544-1671 - Pojawia się w:
- Journal of Mechanical and Energy Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł