Feng Xi, Huafeng Qin, Li Hu, Rui Lin. Three-Dimensional Perturbation Imaging in Fluid Field with Visualized Focusing Schlieren System[J]. Acta Optica Sinica, 2021, 41(9): 0911003
- Acta Optica Sinica
- Vol. 41, Issue 9, 0911003 (2021)
Fig. 1. “Z” configuration schlieren system
Fig. 2. Images of three-dimensional perturbation with schlieren system. (a) Theoretical result; (b) experimental result
Fig. 3. Focusing schlieren visualization system. (a) Schematic; (b) source grid and cutoff grid
Fig. 4. Image of three-dimensional perturbation with parallel line grid
Fig. 5. Annulus grid. (a) Source grid; (b) cutoff grid
Fig. 6. Three-dimensional perturbation imaging by modified focusing schlieren system. (a) Image of ultrasonic perturbation on the plane at the center of cavity; (b) images of ultrasonic perturbation with different excited powers
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