Fig. 2: Analysis of tracked video of Run 1 CT1 (Pr = 96, Ma = 46,000).
From: Revisiting the NASA surface tension driven convection experiments
a View of the cropped experimental video before skew correction and thresholding (Left-Side). b Skew Corrected video after tracking, blue and green lines represent the final overlaid particle tracks while purple circles represent bounding shapes of detected particles. Note that the tracked data are flipped across the vertical axis in relation to the orientation of the original video. c Extracted velocity field from TrackMate after track-processing and smoothing. d Computed divergence values for the extracted velocity field \((\nabla \cdot {\overrightarrow{u}}^{e})\), where \({\overrightarrow{u}}^{e}\) represents experimental velocity vector. Scale bars (a, b), 1 cm.
