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2020 | OriginalPaper | Buchkapitel

Numerical and Experimental Investigations on Film Cooling Performance of Trench Model Embedded with Compound Angle Film Hole Jets

verfasst von : V. G. Krishna Anand, K. M. Parammasivam

Erschienen in: Recent Advances in Mechanical Engineering

Verlag: Springer Singapore

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Abstract

The Trench film cooling is a cooling technique where film cooling holes are embedded within a cut slot made on the surface with the application of thermal barrier coatings. The goal of the present investigation is to compare the cooling effectiveness of trench model embedded with compound angled film hole viz. 45°, 90°, 135° through numerical and experimental investigation at two different blowing ratios. The width and depth of trench are maintained at 2D and 0.7D, respectively, with D as the hole diameter. Results of the study show that trench model embedded with 90° compound angled film hole delivered highest cooling effectiveness for two tested ratios of blowing between coolant and mainstream flows. Experimental results on film cooling effectiveness produced good agreement with computational results.

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Literatur
1.
Zurück zum Zitat Dorington JR, Bogard DG, Bunker RS (2007) Film effectiveness performance for coolant holes embedded in various shallow trench and crater depressions. In: Proceedings of ASME turbo expo 2007: power for land, sea and air, GT-2007-27992, pp 749–758, ASME, Canada, 14–17 May 2007 Dorington JR, Bogard DG, Bunker RS (2007) Film effectiveness performance for coolant holes embedded in various shallow trench and crater depressions. In: Proceedings of ASME turbo expo 2007: power for land, sea and air, GT-2007-27992, pp 749–758, ASME, Canada, 14–17 May 2007
2.
Zurück zum Zitat Kross B, Pfitzner M (2012) Numerical and experimental investigation of the film cooling effectiveness and temperature fields behind a novel trench configuration at high blowing ratio. In: Proceedings of ASME turbo expo 2012: turbine technical conference and exposition, GT-2012-68125, pp 1197–1208, ASME, Denmark, 11–15 June 2012 Kross B, Pfitzner M (2012) Numerical and experimental investigation of the film cooling effectiveness and temperature fields behind a novel trench configuration at high blowing ratio. In: Proceedings of ASME turbo expo 2012: turbine technical conference and exposition, GT-2012-68125, pp 1197–1208, ASME, Denmark, 11–15 June 2012
3.
Zurück zum Zitat Goldstein RJ, Jin P (2000) Film cooling downstream of a row of discrete holes with compound angle. ASME J Turbomach 123(2):222–230CrossRef Goldstein RJ, Jin P (2000) Film cooling downstream of a row of discrete holes with compound angle. ASME J Turbomach 123(2):222–230CrossRef
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Zurück zum Zitat Taslim ME, Khanicheh A (2005) Film effectiveness downstream of a row of compound angle film holes. ASME J Heat Transf 127(4):434–440CrossRef Taslim ME, Khanicheh A (2005) Film effectiveness downstream of a row of compound angle film holes. ASME J Heat Transf 127(4):434–440CrossRef
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Zurück zum Zitat Chandran PM, Halder P, Panda RK, Prasad BVSSS (2012) A comparative study of film cooling effectiveness on a flat plate with adiabatic and conjugate conditions for different hole shapes. In: Proceedings of ASME turbo expo 2012: turbine technical conference and exposition, GT-2012-69142, pp 1571–1580, ASME, Denmark, 11–15 June 2012 Chandran PM, Halder P, Panda RK, Prasad BVSSS (2012) A comparative study of film cooling effectiveness on a flat plate with adiabatic and conjugate conditions for different hole shapes. In: Proceedings of ASME turbo expo 2012: turbine technical conference and exposition, GT-2012-69142, pp 1571–1580, ASME, Denmark, 11–15 June 2012
7.
Zurück zum Zitat Lu Y, Dhungel A, Ekkad SV, Bunker RS (2008) Trench film cooling-effect of trench downstream edge and hole spacing. In: Proceedings of ASME turbo expo 2007: power for land, sea and air, GT-2008-50606, pp 563–569, ASME, Germany, 9–13 June 2008 Lu Y, Dhungel A, Ekkad SV, Bunker RS (2008) Trench film cooling-effect of trench downstream edge and hole spacing. In: Proceedings of ASME turbo expo 2007: power for land, sea and air, GT-2008-50606, pp 563–569, ASME, Germany, 9–13 June 2008
8.
Zurück zum Zitat Oguntade HI, Andrews GE, Ad B, Ingham DB, Pourkashanian M (2013) Improved trench film cooling with shaped trench outlets. ASME J Turbomach 135(2):1–15 Oguntade HI, Andrews GE, Ad B, Ingham DB, Pourkashanian M (2013) Improved trench film cooling with shaped trench outlets. ASME J Turbomach 135(2):1–15
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Zurück zum Zitat Mcgoven KT, Leylek JH (2000) A detailed analysis of film cooling physics: part II—compound-angle injection with cylindrical holes. ASME J Turbomach 122(1):113–121CrossRef Mcgoven KT, Leylek JH (2000) A detailed analysis of film cooling physics: part II—compound-angle injection with cylindrical holes. ASME J Turbomach 122(1):113–121CrossRef
Metadaten
Titel
Numerical and Experimental Investigations on Film Cooling Performance of Trench Model Embedded with Compound Angle Film Hole Jets
verfasst von
V. G. Krishna Anand
K. M. Parammasivam
Copyright-Jahr
2020
Verlag
Springer Singapore
DOI
https://doi.org/10.1007/978-981-15-1071-7_12

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