Abstract
This paper presents non-intrusive measuring techniques for velocity and density measurements of a flat counter flow diffusion flame. Classical LDV-measurements become difficult near such flames because of strong refractive index gradients existing on both sides of the flame location. A method is preposed in which the resultant distortions of the interference fringes can be eliminated. A new technique for simultaneour measurements of the velocity and the density fields in axially symmetric flows is also suggested and is applied to the present flame study. For the local density measurements, a laser beam deviation (LBD) is detected by a position sensor diode and data are processed by the Abel integral transform using the Gladstone-Dale approximation.
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© 1992 Springer-Verlag Berlin Heidelberg
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Durst, F., Dornberger, E., Jakob, G., Rolon, J.C., Veynante, D., Martin, J.P. (1992). Laser Velocity and Density Measurement of a Flat Counter Flow Diffusion Flame. In: Lee, R.S.L., Whitelaw, J.H., Wung, T.S. (eds) Aerothermodynamics in Combustors. International Union of Theoretical and Applied Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-84755-4_4
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DOI: https://doi.org/10.1007/978-3-642-84755-4_4
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