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ISSN Druckformat: 1065-3090
ISSN Online: 1940-4336
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A MEASUREMENT OF MOVING SHOCK WAVE POSITIONS BY A LINEAR IMAGE SENSOR AND SCHLIEREN SYSTEM
ABSTRAKT
A simple and efficient system to measure positions of the shock wave fluctuating with high frequency is evaluated. This system consists of a Schlieren optical system and a line scan camera using a linear image sensor, and a data acquisition and processing computer. The shock position was determined by shock position-recognition processing. The unsteady shock waves occurring in the flow passage of a two-dimensional cascade were measured using this system. The results show that this system can effectively measure the unsteady shock position moving at several hundreds Hz for a single shock wave. However, more creative techniques are required for the measurement and the recognition of multiple shock waves.
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Shiratori T., Matsushita M., Noguchi Y., Periodic Fluctuation of Shock Waves in Transonic Cascade Flows, in Unsteady Aerodynamics and Aeroelasticity of Turbomachines, 1998. Crossref