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Fig. 18 | Advances in Aerodynamics

Fig. 18

From: Analysis of shock wave unsteadiness using space and time correlations applied to shadowgraph flow visualization data

Fig. 18

Time lag magnitude variation with frequency of data associated with locations near the shock wave and in the downstream boundary layer, for data acquired on 05 April 2018. Note that positive time lag values indicate the signal in the boundary layer (for a particular frequency) occurs prior to the signal (at the same frequency) which is associated with the normal shock wave

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