| 摘要 |
PURPOSE: A teaching material for guiding a student by visualizing the relation between a wind tunnel and a moving body is provided to teach the variation of wind tunnel behavior according to the shape of the moving body and the positional property. CONSTITUTION: An intake pipe(10) accepts a grating which is assembled with a plurality of longitudinal films(11) and the traverse film(12). A discharge pipe(20) fixes a switch(23) and a battery holder(24) which is electrically connected in series. A fan(30) electrically interlinks the switch and the battery holder. Accordingly, this invention has an advantage. |
