Computer simulation of turbulent jet structure radiography

Kory A. Kodimer; Lynn A. Parnell; Robert S. Nelson; Patrick J. Papin

doi:10.1117/12.130877

16 December 1992 Computer simulation of turbulent jet structure radiography

Kory A. Kodimer, Lynn A. Parnell, Robert S. Nelson, Patrick J. Papin

Proceedings Volume 1766, Neural and Stochastic Methods in Image and Signal Processing; (1992) https://doi.org/10.1117/12.130877
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

Liquid metal combustion chambers are under consideration as power sources for propulsion devices used in undersea vehicles. Characteristics of the reactive jet are studied to gain information about the internal combustion phenomena, including temporal and spatial variation of the jet flame, and the effects of phase changes on both the combustion and imaging processes. A ray tracing program which employs simplified Monte Carlo methods has been developed for use as a predictive tool for radiographic imaging of closed liquid metal combustors. A complex focal spot is characterized by either a monochromatic or polychromatic emission spectrum. For the simplest case, the x-ray detection system is modeled by an integrating planar detector having 100% efficiency. Several simple geometrical shapes are used to simulate jet structures contained within the combustor, such as cylinders, paraboloids, and ellipsoids. The results of the simulation and real time radiographic images are presented and discussed.

Citation Download Citation

Kory A. Kodimer, Lynn A. Parnell, Robert S. Nelson, and Patrick J. Papin "Computer simulation of turbulent jet structure radiography", Proc. SPIE 1766, Neural and Stochastic Methods in Image and Signal Processing, (16 December 1992); https://doi.org/10.1117/12.130877

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