AixLib.Airflow.Multizone.Examples.ReverseBuoyancy3Zones

# .AixLib.Airflow.Multizone.Examples.ReverseBuoyancy3Zones

Model with three rooms and buoyancy-driven air circulation that reverses direction

## Information

This model is similar than AixLib.Airflow.Multizone.Validation.ThreeRoomsContam. However, the initial temperatures are such that at the start of the simulation, the flow direction between the three rooms reverses direction.

At the start of the simulation, the outdoor temperature is 15°C, and the temperatures of the volumes are 20°C at the top, 22°C at the bottom west and 25°C at the bottom east. Thus, initially there is a net flow circulation in the counter-clock direction. Because the volume on the east exchanges air with the outside, it cools down fast. Once it cooled down sufficiently, the flow direction between the three rooms reverses because the air in the bottom east is heaviest.

## Contents

Name | Description
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## Revisions

- March 26, 2021 by Michael Wetter:
  Updated comments for IBPSA, #515.
- December 22, 2014 by Michael Wetter:
  Removed `Modelica.Fluid.System` to address issue #311.
- November 10, 2011, by Michael Wetter:
  Added documentation.

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