Diffused back illumination 302Mie-scatter 183Schlieren 183Schlieren 094
CameraPhantom v710Phantom v7.1Phantom v7.1Phantom v7.1
Lens f, f/#50 mm, f/1.2200 mm, f/485 mm, f/2.850 mm, f/1.2
Filter center, fwhm450 nm, 50nmnone450 nm, 50nm532 nm, 0° inc. mirror
Lighting450 nm pulsed LED with diffuser532 nm CW laser side illumination450 nm LEDXe arc lamp
Frame period [µs]6.6615.026.2521.25
Exp. time [µs]0.053102
Pixel resolution10.50 pixels/mm21.52 pixels/mm4.32 pixels/mm2.65 pixels/mm
Movie: Play or right-click to download mpg
DescriptionDiffused back illumination with grayscale intensity threshold to indicate liquid region. Vapor-phase beam steering also persists downstream as discussed in [1,2]. The light source is a pulsed LED with only 50 ns pulse duration to freeze the flow.Mie scatter illumination from the side with high resolution. Laser illumination side is from the bottom of the image. Border is used to derive liquid length vs time.Schlieren movie obtained simultaneously with Mie-scatter movie. Movie shown with and without corrections for background schlieren effects from the ambient.Schlieren movie shows border of vapor region. Movie shown with and without corrections for background schlieren effects from the ambient. Vapor boundaries, stored as Matlab binary files, are available to download . Load files within Matlab to access variables. See readme notes for more information.
ReferencesManin, 2012; Pickett, 2011Pickett, 2011Pickett, 2010; Pickett, 2011Pickett, 2010