Abstract
This paper is limited to fundamental findings the vertical distribution of wind direction in the room from an experimental study on the cross ventilation through windows with eaves or pivot windows. The results are as follows: 1) The wind direction after windows without fittings is led upward by eaves. And the larger the eaves extends, and the steeper the eaves slopes, the more upward the wind direction after windows slopes. (See Fig. 4 and Fig. 5) 2) The wind direction after pivot windows is nearly according to angle of revolution of fittings.
