Abstract
In a rectangular channel with heated below and cooled above, when the temperature difference is above a critical value, natural convection appears. This roll axis is perpendicular to the flow direction. When the through-flow is imposed on such convection, the flow pattern changes and roll axis become parallel to the flow direction. However, if the through-flow was very weak, the flow structure kept itself or changed only near the entrance region of the test volume. In this study, these three flow structures of mixed convection were visualized using thermo-sensitive liquid crystal suspended method and convection pattern map was presented.
