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ISSN Online: 2379-1748

ISBN Flash Drive: 978-1-56700-469-4

ISBN Online: 978-1-56700-470-0

Second Thermal and Fluids Engineering Conference
April, 2-5, 2017, Las Vegas, NV, USA

NUMERICAL SIMULATION OF UPWARD FACING OIL-JET COOLING ON A FLAT PLATE

Get access (open in a dialog) pages 703-717
DOI: 10.1615/TFEC2017.cfd.017517

要約

Long used on heavy duty and high performance engines, oil jets are increasingly being used to cool the undersides of pistons in passenger vehicle engines due to the increased thermal loads on such engines. The effectiveness of such cooling depends on many parameters, including the oil jet flow rate, the oil fluid properties and the distance between the nozzle and the surface. In particular, knowing the jet impingement area is important for heat transfer calculations, yet very few studies have focused on upward liquid or oil-jet flows. This ongoing study aims to improve our understanding of the fundamental flow characteristics of upward oil jets. Using a finite volume-based computational fluid dynamics (CFD) solver, transient two-phase 3D flow simulations of an upward facing oil jet impinging on a flat surface were performed for several oil flow rate and oil temperature values. The multiphase volume of fluid (VOF) and k-omega turbulence models were used in this investigation. This paper reports the results for the jet impingement area under different flow conditions, and presents results of the analysis of the downward falling stream columns. The computational results of the oil jet simulations are compared to experimental measurements.