Heat Transfer Research
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ISSN Print: 1064-2285
ISSN Online: 2162-6561
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Indexed in
OSCILLATING HEAT TRANSFER PERFORMANCE OF DIFFERENTLY SHAPED COOLING GALLERIES IN AN ENGINE PISTON
Volume 50,
Issue 5, 2019,
pp. 417-434
DOI: 10.1615/HeatTransRes.2018026507
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ABSTRACT
Oscillating heat transfer performances of piston cooling galleries with circle, oval, and water drop-shaped cross sections are investigated by using a numerical simulation method. The results show that the heat transfer performance of the water drop-shaped cooling gallery is the best. The surface heat transfer performance of the water drop-shaped cooling gallery increases with increase of the crankshaft speed and the stroke of the engine piston. The optional cooling oil volume fraction is 20–50%. The crankshaft speed is proved to be the primary factor that impacts the heat transfer performance.
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