Abel inversion of deflectometric measurements in dynamic flows |
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| Authors: | Agrawal A K Albers B W Griffin D W |
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| Affiliation: | School of Aerospace and Mechanical Engineering, University of Oklahoma, Norman, Oklahoma 73019, USA. aagrawal@ou.edu |
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| Abstract: | We present an Abel-inversion algorithm to reconstruct mean and rms refractive-index profiles from spatially resolved statistical measurements of the beam-deflection angle in time-dependent, axisymmetric flows. An oscillating gas-jet diffusion flame was investigated as a test case for applying the algorithm. Experimental data were obtained across the whole field by a rainbow schlieren apparatus. Results show that simultaneous multipoint measurements are necessary to reconstruct the rms refractive index accurately. |
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