Table 7 Design variables and their value ranges.

From: Design and optimization of wall-climbing robot impeller by genetic algorithm based on computational fluid dynamics and kriging model

Design variable

Symbol

Unit

Value range

Blade outlet angle

\(\beta_{2A}\)

°

[30,70]

Impeller inlet diameter

\(D_{0}\)

mm

[50,70]

Blade number

\(Z\)

pcs

[4, 28]

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