Velocity measurement from schlieren images of subsonic flows using a wavelet-based optical flow algorithm

Key Points

• Velocity measurement was achieved using wavelet-based optical flow methods in schlieren images, showing effective results.
• The technique demonstrated accuracy, with findings indicating precise velocity calculations in subsonic conditions.
• Assessment using a wavelet transform for optical flow analysis provided insight into flow characteristics effectively.
• This reflects the potential of advanced imaging techniques for improving velocity measurement in fluid dynamics.