| General | Femtet ver.2022 has had a new function of diffusion analysis which handles passive scalar. This example analyzes a distribution of nitrogen concentration in the experimental room where nitrogen of 100% concentration has been generated. |
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| Analysis Model | The container on the desk at the center of the experimental room is set to generate gas. Inflow/outflow conditions are set in the room where local ventilation by draft chambers, air conditioning, and air venting are simulated. |
| Result | The result shows nitrogen concentration is low in the vicinity of air conditioners, air vents, and local ventilators. The result also shows nitrogen concentration is high at the back of a desk where air stagnates or flows in the direction opposite to the airflow of the air conditioner. |
| Keywords | Diffusion Analysis,Passive Scalar,Ventilation |
