Module 5: Schlieren and Shadowgraph
  Lecture 30: Three dimensional reconstruction of schlieren data
 

Convection in water at high Rayleigh numbers in the presence of an air-water interface is considered. A sequence of shadowgraph images recorded in the experiments is shown in Figure 5.25. 

Figure 5.25: Shadowgraph images showing the deformed interfaces in a cavity half-filled with water, the best being air; Interfaces are emphsized in black.