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Title: Compilation of underexpanded impinging jet instabilities Description: A compilation of 2 axial and 3 helical instability modes of oscillation imaged at 1,000,000 frames per second with a shadowgraphy technique showing which instability modes dominate at different Nozzle Pressure Ratios (NPR) and different impingement distances (H). Note that the high-definition video is available on YouTube on the channel: adamrisborg Credits: Adam Risborg & Julio Soria- Laboratory for Turbulence Research in Aerospace and Combustion, Department of Aerospace and Mechanical Engineering, Monash University References: See 'adamrisborg' channel on YouTube for updated references and videos. Web Page: Contributed By: Adam Risborg adam.risborg@gmail.com |