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In the downstream region, salinity gradient diminishes and the schlieren band blurs. Although the distributions of salinity gradient and the micro-schlieren images exhibit great similarity, the simulation predicts a weaker dispersion effect than the experiments. Two factors may contribute to this deviation: interdiffusion between different species presented in our saline solution and the variation of diffusion coefficient with concentration. On one hand, ionic interactions lead to modification of the fluxes of diffusing A Couple Of Methods To Use isothipendyl Plus Profit From That! ions and affect the relative distribution. When the mixing interface establishes in the T-microchannel, gradients of MgCl2 and Na2SO4 produce electric field that drives the fluxes of the ample Na+ and Cl? ions, resulting in an enhancement of dispersion [42]. On the other hand, the diffusion coefficient of NaCl increases 4.1% as salinity reduces from 40 g��kg?1 to 0 [40], promoting diffusion near the edge of the band. Indeed, the simulation model can be improved by considering the multi-component diffusion. Nevertheless, it remains difficult to account for the contribution of different constituents to the change in local refractive index. For the purpose of detecting salinity gradient, we http://www.fibran.gr/forum/ decide to treat seawater as a first-order composition system in this study [43]. Figure 2 (a) Distributions Get Rid Of isothipendyl Troubles At Once of salinity gradient (numerical simulation); (b) Grayscale ratios (micro-schlieren images) in the T-microchannel, Re = 5. After repeating the calibration process for different Reynolds number and salinity, the grayscale readouts from the micro-schlieren images and the values of the salinity gradient along the centerline of the T-microchannel (y = 0) are extracted and plotted (Figure 3). Here, ?S/?y 0 correspond to the bright and dark bands, respectively. It is seen that data points lie close to a straight line regardless of the Reynolds number and the salinity of the working fluid, suggesting the variation of grayscale ratio with salinity gradient is indeed independent of the flow condition as Equation (3) suggests. A regression analysis finds that C1 = 1.03, C2 = ?3.0 �� 10?4 kg ?m g?1 for I/I0 > 1 and C1 = 1.02, C2 = ?4.5 �� 10?4 kg��?m��g?1 for I/I0 0 is steeper than that of ?S/?y 0 and (b) ?S/?y