The UnUsual water tank - 1:10 Hospital Isolation Room Model

When Dr Julian from NUH approached us in early 2011, NUH wants to build a complex water tank to study ventilation model of isolation room.

The model is used to study the dynamic of air flow when a human figure moves in and out from isolation room. In order to simulate the hospital isolation room, the model has door which are controlled by motor and 1 moving track for human figure. As there are three types of doors in study, single swing, double swing and sliding door, each model house a door with human figure.  This make up to total 6 axis of precision motion control which shall be controllable through PC. As this is a 1:10 model using water to replace air flow fluid dynamic, in order to keep to the same Reynolds constant for air flow, the motion speed is 0.5 times slower than actual speed.

The model is connected to a water host which allows filling of water into individual chamber of interest. A plane laser is used to shine on the water layer which allow visual recording through a high speed camera. The high speed camera is capturing the dynamic of water flow in high frame rate.

High speed camera when human figure move at 1m/s, 10000fps

Capture with 30fps video camera