Abstract A numerical method to simulate the ferrofluid particle distribution evolution is presented. Also, the optical transmission of the distributions obtained is calculated by two numerical methods. The first one consists on a numerical propagation of an electromagnetic wave through the sample. The second one analyzes the aggregates’ mean length to obtain the optical transmission through a mixture law. As an illustration of the possibilities of the method developed, it is applied to analyze how ferrofluid optical transmission changes after magnetic field application depend on intrinsic properties of the colloid such as its nanoparticle concentration and surfactant repulsion represented by means of the final distances between consecutive particles forming chains. Changes in the attenuation factor of these samples show the trends expected from the Literature.

中文翻译：

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分析铁磁流体光传输与其本征特性相关性的数值方法

摘要 提出了一种模拟铁磁流体颗粒分布演化的数值方法。此外，获得的分布的光透射率是通过两种数值方法计算的。第一个包括电磁波通过样品的数值传播。第二个分析聚合体的平均长度以通过混合定律获得光传输。作为所开发方法的可能性的说明，它用于分析磁场施加后铁磁流体光学传输如何变化取决于胶体的固有特性，例如其纳米粒子浓度和表面活性剂排斥，由连续粒子之间的最终距离表示形成链。