Application of the RBF Method to the Estimation of Temperature on the External Surface in Laminar Pipe Flow

Table 3

The relationship between relative root mean square error and the number of the measuring points.

	𝑁𝑚=18	𝑁𝑚=9	𝑁𝑚=5(𝑁𝑚=𝑛)	𝑁𝑚=4(𝑁𝑚<𝑛)
Example 1	6.7640×10^−3	9.7693×10^−3	1.6578×10^−2	0.1154
Example 2	1.9879×10^−3	5.9696×10^−3	1.8819×10^−2	0.1247