Heat transfer characteristics of impinging diesel sprays
The heat transfer characteristics of impinging diesel sprays were studied in a Rapid Compression Machine. The temporal and spatial distributions of the heat transfer around the impingement point were measured by an array of high frequency response surface thermocouples. Simultaneously, the flow field of the combusting spray was photographed with high speed movie through the transparent head of the apparatus. In this paper the results for the auto-ignited fuel sprays are compared to those of non-combusting sprays which were carried out in nitrogen. The values of the heat flux from the combusting sprays are found to be substantially different from those of the non-combusting sprays. The difference is attributed to the radiative heat transfer and the combustion generated bulk motion and small scale turbulence.
- OSTI ID:
- 5577220
- Report Number(s):
- CONF-890240--
- Country of Publication:
- United States
- Language:
- English
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