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Tomographic Reconstruction of the Moments of Local Probability Density Functions in Turbulent Flow Fields.


pdf icon Tomographic Reconstruction of the Moments of Local Probability Density Functions in Turbulent Flow Fields. (544 K)
Nyden, M. R.; Vallikul, P.; Sivathanu, Y. R.

Journal of Quantitative Spectroscopy Radiative Transfer, Vol. 55, No. 3, 345-356, 1996.

Keywords:

probability; transmission; turbulence; algorithms; turbulent flow; flow fields; equations

Abstract:

An algorithm for the tomographic reconstruction of the individual moments of the probaility density functions describing the local transmittance of radiation through a turbulent flow field is advanced. The new method, which is based on Fourier inversion, is applicable to asymmetric (as well as, to axisymmetric) flows. The validity of the method is examined by comparing reconstructed moments of the local probability functions in a buoyant propene/air flame and an ethene/air jet flame to the corresponding values obtained from optical probe measurements.