1../Experimental_Dataset/no_flow/5cm_water_depth/planar_laser_induced_fluorescence/y=+00.00cm/undular_h5cm_a0.5cm_y=+00.00cm 2../Experimental_Dataset/with_flow/5cm_water_depth/planar_laser_induced_fluorescence/y=+00.00cm/undular_a0.5cm_y=+00.00cm 3 4