Single Pulse Jet Impingement on Inclined Surface, Heat Transfer and Flow Field

Paper #:
  • 2013-24-0003

Published:
  • 2013-09-08
DOI:
  • 10.4271/2013-24-0003
Citation:
Bovo, M. and Rojo, B., "Single Pulse Jet Impingement on Inclined Surface, Heat Transfer and Flow Field," SAE Technical Paper 2013-24-0003, 2013, doi:10.4271/2013-24-0003.
Pages:
13
Abstract:
This paper focuses on the heat transfer and flow field resulting from a single pulse impinging jet. The size, time scale and jet characteristics are relevant to automotive diesel injection process. The purpose is to study jet impingement by correlating and cross comparing different measurements and simulations of the same event. The pulse jet impinges on a flat surface at different angles (0°, 30°, 45°, 60°) and a 90° rounded edge.Experiments are performed deploying various techniques to record the event; PIV for the flow field, high acquisition rate thermocouples and infrared camera for surface temperature. The cases are reproduced with CFD simulations including conjugated heat transfer. The flow is simulated using LES.The results highlight that the jet penetration rate is a function of the target angle. Also, the heat transfer magnitude and space distribution depends on the surface inclination. Alongside, the consistency of the results validates CFD as a powerful tool to study this type of flow.
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