14 October 1996 Conditionally sampled two-dimensional optical wavefront measurements in the near-nozzle region of a heated axisymmetric jet
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Abstract
The time-evolution of optical degradation in the near nozzle region of a heated axisymmetric jet is measured using conditional sampling techniques. A novel linearized stability experiment is performed in order to identify the flowfield states most applicable for conditional sampling techniques. The results of the conditional sampling experiment exhibit a condition where two distinct flowfield states are evident. Potential explanations for the observance of these two distinct states are proposed, with the most probable explanation being due to pi-jumps that can arise between the phase of the excitation signal and the phase of the flowfield events.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ronald J. Hugo, Ronald J. Hugo, Lenore J. McMackin, Lenore J. McMackin, } "Conditionally sampled two-dimensional optical wavefront measurements in the near-nozzle region of a heated axisymmetric jet", Proc. SPIE 2828, Image Propagation through the Atmosphere, (14 October 1996); doi: 10.1117/12.254173; https://doi.org/10.1117/12.254173
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