A Brief Review on Numerical Studies on Film Cooling Effectiveness

Abstract:

Film cooling is employed for effective cooling in nozzles and combustion chambers using a spray of coolant fluid in the mainstream flow to cool the body. Experimental analysis was performed elaborately in the past years to get an exact analysis of film cooling effectiveness with different parameters. This approach was however discouraged due to its high cost and time consumption. Recently, researchers switched to the use of numerical platforms for investigation of complex film cooling systems. The paper discusses in detail the numerical analysis of the film cooling systems done so far and the numerical models employed for such a complex analysis along with the advantages and trade-offs of such a numerical approach. This study was carried out to extend database knowledge about the numerical film cooling for its various applications. Therefore, an appropriate cooling technique should be designed to protect these parts. Film cooling is one of the most effective external cooling methods. Various numerical film cooling techniques presented in the literature have been investigated. Moreover, challenges and future directions of numerical film cooling techniques have been reviewed and presented in this paper. The aim of this review is to summarize recent development in research on film cooling techniques and attempt to identify some challenging issues that need to be solved for future research.

• Periodical: Applied Mechanics and Materials (Volume 852)
• Pages: 699-706
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.852.699
• Online since: September 2016
• Authors: Prakhar Jindal*, Shubham Agarwal, R.P. Sharma
• Keywords: Effectiveness, Film Cooling, Numerical Investigation

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