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

Identyfikatory

DOI

10.30464/10.30464/jmee.2021.5.2.141

• Języki publikacji: EN

Abstrakty

EN

The major effects of cylindrical and row trenched cooling holes with angles of 𝛼 = 30°, 𝛽 = 0°, 𝛼 = 40°, 𝛽 = 0° and 𝛼 = 50°, 𝛽 = 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.

Słowa kluczowe

EN

gas turbine engine; film cooling; combustor simulator; trench hole; dilution hole

PL

gazowy silnik turbinowy; chłodzenie; symulator komory spalania; otwór wykopu; otwór rozcieńczający

• Wydawca: Wydawnictwo Uczelniane Politechniki Koszalińskiej
• Czasopismo: Journal of Mechanical and Energy Engineering
• Rocznik: 2021
• Tom: Vol. 5, No 2
• Strony: 141--148
• Opis fizyczny: Bibliogr. 21 poz., rys., wykr.

Twórcy

autor

Kianpour Ehsan

• Department of Mechanical Engineering, Najafabad Branch,Islamic Azad University, Najafabad, Iran

autor

Sidik Nor Azwadi Che

• Department of Thermo-fluid, Faculty of Mechanical Engineering, University Technology of Malaysia, Skudai, Johor, Malaysia

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).