Theoretical and experimental studies to remove a stench around a bedside

Abstract

For the exclusion of bad smell around a bedside, theoretical and experimental researches have been attempted. A simulated calculation of the air streams is solved based on Navier- Stokes equations. Effects of the shape of the mouth of exhaust pipe are investigated for various cases. For each case, the flows of the air around the bed is visualized by flow vectors, and the change in the flow vectors is investigated. On the other hand, as the experimental study, a test machine is set up to investigate the effect of the filter to absorbe the stink. The odor meter is used to detect the strength of the odor, it is found that there are two components in the contaminated air, one is the fast component, which is easyly absorbed by the filter, on the other hand, the slow compornent can not absorbed by the filter. The air can not be smelled after the filter.