| α | Thermal diffusivity, λ/(cρ) |
| β | Thermal expansion coefficient, 1/K |
| Cp | Specific heat, J·Kg−1·K−1 |
| η | Dynamic viscosity, mPa·s |
| H | Height of the pool, m |
| λ | Thermal conductivity, W·m−1·K−1 |
| υ | Kinematic viscosity, η/ρ |
| Nu | Nusselt number, qH/ΔTλ |
| ρ | Density, kg/m3 |
| Pr | Prandtl number, υ/α |
| q | Heat flux, Watt/m2 |
| Ra | Relaigh number, gβQH5/αλυ |
| Q | Volumetric heat source, W/m3 |
| L | Characteristic length, m |
| V | Volume of the pool, m3 |
| R | Radius of the pool, m |
| g | Gravitational acceleration, m/s2 |
| T | Temperature, K |
| Gr | Grashof number gH3αΔT/υ2 |