The application of holographic interfermometry to the determination of the flow field around a right circular cone at angle of attack.
Jagota, Ravi Chandar
Collins, Daniel J.
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The successful application of holography to the study of three dimensional flow fields due to phase objects has been reported in the literature. The present report extends this technique to the study of density fields around opaque bodies as would normally be encountered in wind tunnel experiments. The density field around a ID degree half-angle cone at zero and ten degree angle of attack has been investigated in the Naval Postgraduate School supersonic wind tunnel. In these experiments, the finite fringe method for the production of interferograms has, for the first time, been applied to holographic interferometry. The density field obtained from the reduction of the interferograms was found to agree with that obtained from an analytical solution of the governing equations as reported by D. J. Jones in Reference 1. The computer program used for the reduction of the interferograms has been evaluated for the effect of the presence of the cone and the shock wave and has been found to yield stable and accurate results.
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The application of holographic interferometry to the determination of the flow field around a right circular cone at angle of attack Collins, Daniel Joseph; Jagota, Ravi Chandar (Monterey, California. Naval Postgraduate School, 1971-12); NPS-57CO71111AThe successful application of holography to the study of three dimensional flow fields due to phase objects has been reported in the literature. The present report extends this technique to the study of density fields ...
Application of holographic interferometry to supersonic flow visualization of a rearfacing step and application of fast Fourier transform methods to current data reduction techniques. Jones, Harland Wilber Jr. (Monterey, California. Naval Postgraduate School, 1974-03);The successful application of holographic interferometry to the study of three-dimensional density fields around bodies in wind tunnel experiments has been reported in the literature along with the associated ...
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