Measurements of a single pulse impinging jet. A CFD reference
1 Chalmers University of Technology, Applied Mechanics, Dep. Thermo-Fluid Mechanics, Göteborg, Sweden
2 Volvo Car Corporation, Powertrain, Göteborg, Sweden
a Corresponding author: email@example.com
Published online: 25 March 2014
This paper reports three sets of measurements of a single pulse impinging jet. The purpose is to serve as a reference for CFD validation. A gas injector generates a single pulse jet at Re ~90000. The jet impinges on a temperature controlled flat target at different angles (0º, 30º, 45º and 60º). The jet velocity field is measured with PIV. The evolution of the jet velocity profile in time is reported at two different locations (suitable as CFD inlet conditions). At the same locations also turbulence quantities are reported. The impingement wall temperature is measured with fast responding thermocouples and infrared camera. These give high time and space resolution respectively. Results are reported in a format suitable for comparison with CFD simulations. The results show that the heat transfer effects are highest for the jet impinging normally on the target. Target inclination has remarkable effects on the jet penetration rate and repeatability. Even small target inclinations result creates a preferential direction for the jet flow and cause a shift in the position of the stagnation region.
© Owned by the authors, published by EDP Sciences, 2014
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