Next Article in Journal
Acknowledgement to Reviewers of International Journal of Turbomachinery, Propulsion and Power (IJTPP) in 2018
Previous Article in Journal
Preliminary Design Considerations for Variable Geometry Radial Turbines with Multi-Points Specifications
Open AccessArticle

A Comparison of Experimental and Computational Heat Transfer Results for a Leading Edge Impingement System

1
Oxford Thermofluids Institute, Department of Engineering Science, University of Oxford, Oxford OX1 3PJ, UK
2
Rolls-Royce plc, Moor Lane, Derby DE24 8BJ, UK
*
Author to whom correspondence should be addressed.
Int. J. Turbomach. Propuls. Power 2018, 3(4), 23; https://doi.org/10.3390/ijtpp3040023
Received: 20 June 2018 / Revised: 7 November 2018 / Accepted: 12 November 2018 / Published: 16 November 2018
Leading edge impingement systems are increasingly being used for high pressure turbine blades in gas turbine engines, in regions where very high heat loads are encountered. The flow structure in such systems can be very complex and high resolution experimental data is required for engine-realistic systems to enable code validation and optimal design. This paper presents spatially resolved heat transfer distributions for an engine-realistic impingement system for multiple different hole geometries, with jet Reynolds numbers in the range of 13,000–22,000. Following this, Reynolds-averaged Navier-Stokes computational fluid dynamics simulations are compared to the experimental data. The experimental results show variation in heat transfer distributions for different geometries, however average levels are primarily dependent on jet Reynolds number. The computational simulations match the shape of the distributions well however with a consistent over-prediction of around 10% in heat transfer levels. View Full-Text
Keywords: leading edge impingement; heat transfer; experimental data; CFD leading edge impingement; heat transfer; experimental data; CFD
Show Figures

Figure 1

MDPI and ACS Style

Pearce, R.; Ireland, P.; Dane, E.; Telisinghe, J. A Comparison of Experimental and Computational Heat Transfer Results for a Leading Edge Impingement System. Int. J. Turbomach. Propuls. Power 2018, 3, 23.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop