Table 3 Negative pressure values of different cavity types.

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

Negative pressure cavity shape

Vertical direction (Pa)

Tilt 45° direction (Pa)

Horizontal direction (Pa)

The rectangular

3531.24

3557.76

3578.16

The circular

4075.52

4066.24

4080.66

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