Gurney-Lurie Chart
The chart below is only an example of how a Gurney-Lurie chart might look and is not based on any actual data. The chart shows how four different dimensionless groups depend on each other.
For any given values of three of the groups
the fourth can be read of the chart.
As stated earlier the X term the time (t) and the thermal diffusivity (α) is being divided by the radius (r) squared. In short n stands for the "depth", that is the length (x) divided by the total length (x0) or for cylinders and spheres the radius (r). The last term m is the relationship between the thermal conductivity (k) and the overall heat transfer coefficient (h).
