Light Sheet

S,. Viinakami, S. Kato, S. Akabayashi. Visualizanon with laser light sheet applied u , inrcmal and external airflows in building environmental engineering. In fluid Cuntrol vo . 2, Tokyo, 1985. 

Type 97 15-kg Concrete Bomb was a light sheet steel cylinder with central exploder tube filled with cast PA which was surrounded by steel pellets set in concrete (p 26) ... 

Type 1 30-kg Substitute Bomb consisted of a light sheet steel cylinder surrounding a central steel burster tube contg in forward part BkPdr chge and after part HE chge. The space betw the tube and outer casing was filled with steel pellets set in concrete (pp 27—28) ... 

Flechette (US) or Aerial Dart. A small fin-stabilized missile (See Fin Stabilization and Spin Stabilization in this Vol), a large number of which can be loaded in an artillery canister consisting of a light sheet metal casing, designed to be fired from a rifled gun. 

Irradiation of the Pulps with Monochromatic Light. Sheets of unbleached and peroxide-bleached thermomechanical pulps (TMP and TMPB) were irradiated with monochromatic light for 2 h at intervals between 250 and 750 nm. The reflectance values obtained from the UV-VIS reflectance spectra of the pulps were plotted against... 

To clarify the mutual interactions between the gas bubbles and its surrounding liquid flow (mostly turbulent) in a bubbly flow, information of bubble s shape and motion is one of the key issues as well as the surrounding liquid velocity distribution. Tokuhiro et al. (1998, 1999) enhanced the PIV/LIF combination technique proposed by Philip et al. (1994) with supplementation of SIT to simultaneously measure the turbulent flow velocity distribution in liquid phase around the gas bubble(s) and the bubble s shape and motion in a downward flow in a vertical square channel. The typical experimental setup of the combination of PIV, LIF, and SIT is shown in Figure 14. The hybrid measurement system consists of two CCD cameras one for PIV/LIF (rear camera) and the other for SIT (front). The fluorescent particles are Rhodamine-B impregnated, nominally 1-10 pm in diameter with specific density of 1.02, and illuminated in a light sheet of approximately 1 mm thickness (Tokuhiro et al., 1998,1999). The fluorescence is recorded through a color filter (to cut reflections) by the rear camera. A shadow of the gas bubble is produced from infrared LEDs located behind the gas bubble. A square "window" set within the array of LEDs provides optical access for... 

Each laser beam was formed into a light sheet 30 mm in height and 0.4 mm thick using quartz lenses. The light sheets are spatially overlapped... 

Figure 8.8 Skimming, Interference Flow and Isolated Roughness Flow visualizations using Laser light sheet (Chang and Meroney, 2003 [111, 112]).

First light sheet positon Second light sheet position... 

FIGURE 8-4 Optical components for two parallel light sheet planes used to establish out of plane velocity component (Raffel et al. 1995). (Reprinted by permission of Springer-Verlag.)... 

Raffel, M., Gharib, M., Ronneberger, O., and Kompenhans, J., Feasibility study of three-dimensional PIV by correlating images of particles within parallel light sheet planes, Exps. in Fluids, 12, 69-77 (1995). 

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