Gang CHENG, Yanan CAO, Xing TIAN, Kun LIU, Jiajin CHENG. Calculation and Evaluation of Acoustic and Flow Field Characteristics of Trapezoid Compound Photoacoustic Cell[J]. Acta Photonica Sinica, 2021, 50(2): 192
- Acta Photonica Sinica
- Vol. 50, Issue 2, 192 (2021)
Fig. 1. Cylindrical acoustic resonant photoacoustic cell model
Fig. 2. Grid model of photoacoustic cell and simulation results of sound pressure
Fig. 3. Comparison of analytical and simulation results
Fig. 4. Structure of the trapezoid compound photoacoustic cell
Fig. 5. Effect of trapezoidal cavity radius on the performance of the photoacoustic cell
Fig. 6. Effect of trapezoidal cavity length on performance of the photoacoustic cell
Fig. 7. Structural models with different number of steps
Fig. 8. Flow field distribution in front and back symmetrical section of the photoacoustic cell
Fig. 9. Flow field section distribution of the photoacoustic cell (R = 3 mm)
Fig. 10. Gas velocity distribution along the axis of three photoacoustic cells
Fig. 11. Frequency scanning results of three photoacoustic cells
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Table 1. Simulation results with different N
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