A physiology student investigated the effect of convective airflow on evaporative cooling, which models how wind affects sweat-mediated thermoregulation.
They constructed two simulated mammalian limbs using cylinders of agar gel covered with a water-saturated membrane:
The student recorded the surface temperature of each simulated limb every 3 minutes for 18 minutes. Their results are shown in the table below.
| Time (minutes) | Limb X (airflow) temperature (°C) | Limb Y (still air) temperature (°C) |
|---|---|---|
| 0 | 40.0 | 40.0 |
| 3 | 31.5 | 37.5 |
| 6 | 25.0 | 35.2 |
| 9 | 20.5 | 33.1 |
| 12 | 18.0 | 31.2 |
| 15 | 18.0 | 29.5 |
| 18 | 18.0 | 28.0 |
Compare the trends shown in the data for Limb X and Limb Y.