抄録
A computer controlled, laser scanning technique has been newly introduced to visuali-zation of arbitrary 3-dimensional surfaces visualization in a space of interest, and applied to 3-D flow visualization in the field of a circular jet flow dynamics.
Using the laser scanning visualization system (LSCVS), circumferential phenomena due to vortical structures in a circular jet has been successfully visualized on a series of dif-ferent diameter, coaxial half columnar surfaces. From image analyses, the flow behavior of jet is discussed in terms of such physical quantities as the mean, the root mean square (RMS), and the dissipation for observed concentration images. Some technical viewpoints for the hardware configuration and the image correction method have been also de-scribed in detail, both of which are essentially required due to the characteristic property of the LSCVS.
This visualization method would be a very viable tool in observing non-axisymetrical phenomena which are difficult to be visualized with conventional laser light sheet meth-ods.
