Randomized trial revealed acoustic control efficacy in asymmetric jet systems, suggesting potential improvements in performance.
Key Points
This research aims to understand how nozzle geometry affects the performance of airflow acoustic piezoelectric generators under asymmetric airflow conditions.
Established a control model for airflow acoustic modulation by studying nozzle-resonant cavity design.
Performed numerical simulations for sound pressure curves at the resonance cavity's bottom.
Conducted experiments to measure frequency errors between sound pressure and control signals.
The error between sound pressure frequency and theoretical control frequency was less than 7.5%.
The match between sound pressure frequency and output voltage frequency had an error of less than 4%.
The findings verified the efficacy of the jet acoustic control model in handling asymmetric jet conditions.