Table 1
Comparison among different mechanisms
| Principle | Advantages | Disadvantages |
| Thermal flow sensors | Flexible design, broad applicability |
High energy consumption, affected by flow temperature |
| Piezoresistive and piezoelectric flow sensors | Facile to model, simple signal collection |
Flow-structure interaction needed, may disturb original flow field |
| Acoustic flow sensors | High sampling frequency, wide detection range | Relatively high cost, affected by environmental conditions |
| Triboelectric flow sensors | No external power needed | Indirect flow measurement, limited to vortices or vibrations |
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