Refractive index measurement of sol forming Laponite JS dispersion using interferometry

Investigation of hydrodynamics in high solid anaerobic digestion by particle image velocimetry and computational fluid dynamics: Role of mixing on flow field and dead zone reduction

“…PIV could only be employed for the flow field measurements in transparent fluids, but sometimes the targeted fluid was opaque. Thus, the transparent model fluid was usually used to mimic real opaque fluids like blood [22] , cementitious composites [23] and so on. In our previous study, 3.00% (wt) laponite suspension was selected as the model fluid for their similarity in both rheological and structural properties compared to HSAD [7] .…”

“…The height of the working fluid was 120 mm. In order to avoid the optical deformation due to the cylinder curvature, the reactor was placed in a transparent square vessel filled up with water whose refractive index (1.33) was the 6 same with that of 3.00% (wt) laponite suspension (1.33 [22] ).…”