Abstract
Quasi-stable multicellular natural convection is induced in a vertical slot filled with glycerin-water solutions and examined by visualizing the flow field and measuring the thermal field. In the experiment, a three-dimensional traverse equipment is controlled by a micro-computer and the thermal field in the vertical slot is measured by a thermocouple attached on the traverse equipment. During the measurement the flow field is observed with aluminum tracer in a light sheet and the measuring points are monitored by a video-camera. Moreover methylene blue solution in a glycerin-water mixture is continuously injected in the convection field through a thin hypodermic needle, and the multicellular convection field induced in the vertical slot is revealed.
