Colleagues, good afternoon!
The task is to separate non-monodispersed colloidal particles of silicon dioxide by size using the density gradient centrifugation method. The experimental data differed significantly from the theoretically calculated ones. In this connection, I also want to conduct a simulation of the process, which will take into account the interaction of particles with each other during centrifugation. Interested in the distribution of particles in solution over time, given that the particles can collide with each other. Does anyone know programs or any simulation environments, modules that will help to simulate this process?
Artem Ibragimov One issue I would highlight is the porosity of such particles which means that the effective density difference may be much less than that of a ‘hard’ particle. That, and irregularity of a particle, means that the particle would take longer to settle than that of a hard sphere. This translates to an under sizing of the particle. Thus, it’s crucial that the density of the particle is given great care and consideration and appropriately justified.
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