Abstract
Particle Image Velocimetiy (PIV) is used to measure the instantaneous velocity fields in the near and far field of an axisymmetric nitrogen-diluted methane jet (Re = 6000) issuing into a co-flowing air stream. Velocity measurements are taken under reacting and non-reacting conditions to determine the effects of heat release on flow structure and mixing. In addition, velocity measurements are made at the base of a lifted methane flame (Re = 4200) to examine the velocity criteria for flame stabilization. In each case, the jet and co-flow are seeded with nominally 0.3μm alumina (Al2O3) particles to obtain planar, two-component (axial and radial) velocity data in the jet, flame zone and free stream. Measurement uncertainties are assessed for the current PIV configuration, and beam steering, image distortion and thermophoresis effects on reacting measurements are discussed.
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Muñiz, L., Martinez, R.E., Mungal, M.G. (1997). Application of PIV to Turbulent Reacting Flows. In: Adrian, R.J., Durão, D.F.G., Durst, F., Heitor, M.V., Maeda, M., Whitelaw, J.H. (eds) Developments in Laser Techniques and Fluid Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-60911-4_26
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DOI: https://doi.org/10.1007/978-3-642-60911-4_26
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