| Title |
A Study on the State of Air motion and It`s velocity distribution Indoor by the Models testing |
| Abstract |
In this paper, Air stream pattern and velocity in rooms are investigated in accordance with variation of inflow angles at inlet. So, wind tunnel testings are carried out with some models for decisive results for such a relationships.Especially, inlet's position is very important because indoor air stream is changed by on outer-wall pressure. But the outer-wall pressure(velocity pressure)is changed by inflow angle, for this reason, this time experiment have been at some positions and with various inflow angles, andThe findings are as follows,(1) when the inlet and outlet are located at center of before and behind wall, then circulating air stream high velocty in rooms are moderated at 70~80 for between wind direction and outer-wall.(2) when inlet is situated at leeward side of a standard up-win wall, then the air stream in rooms have the ideal streams and comparatively high velocity accodance with inflow angles.(3) when the one opening is positioned on forth wall, and the other opening is positioned adjacent wall, then the air streams and velocity are best at 90 for between wind direction with outer-wall, but the other hand, the worst air stream and the lowest air velocity in rooms are obtoined at 45. So, we have to caution in order to do not such a mistake in summer. |