Hybrid ventilation by revolving doors

For that study, the transfers of air across revolving doors have been observed , in that aim a small-scale laboratory model was used that revealed the existence of a critical revolution rate , where transfers are maximal for a given combination of door geometry, revolution rate and temperature constrast. So two transfer regimes for revolving doors are possible. The potential implications to heat losses across the doorway and ventilation driven by the door are discussed in that paper.