Measurement of shock wave unsteadiness using a high-speed schlieren system and digital image processing.
نویسندگان
چکیده
A new method to measure shock wave unsteadiness is presented. Time-resolved visualizations of the flow field under investigation are obtained using a high-speed schlieren optical system and the motion of the shock wave is determined by means of digital image processing. Information on the shock's unsteadiness is subsequently derived with Fourier analysis. A sample study on shock unsteadiness in a shock-wave/turbulent boundary-layer interaction with separation is included. The method presented enables a measure of shock unsteadiness at locations in the imaged flow field not accessible by intrusive methods.
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ورودعنوان ژورنال:
- The Review of scientific instruments
دوره 79 12 شماره
صفحات -
تاریخ انتشار 2008