Here you can find all materials that would not fit anywhere else, but I find them somewhat valuable.

**Sedimentation of point particles in Stokes flow**

Simulation written for Computer Simulations in Soft Matter Physics course with Piotr Szymczak. The three-body problem of sedimenting particles is investigated numerically, involving reversible and non-reversible algorithms. Three point particles sedimenting in viscous liquid exhibit interesting behaviour stemming from hydrodynamic interactions between them. The flow field is modelled by the Oseen tensor approximation. A certain class of initial conditions (horizontal alignment) is investigated to analyse chaotic mixing behaviour in the first phase of particles' motion. [available on request]

**Four approaches to hydrodynamic Green's functions - the Oseen tensors**

Prepared for Microworld Hydrodynamics course with Maria Ekiel - Jeżewska.

Four ways of deriving the flow field generated by a force concentrated in one point in low Reynolsd number flow regime are presented, basing on the books by Zapryanov & Tabakova, Kim & Karilla, Dhont and Pozrikidis. We find a fundamental solution of Stokes equations for infinite fluid which can be used to construct solutions with more complex forces. [pdf], also available at ArXiV: preprint no. 1312.6231

**Stokes flow generated by a point force in various geometries. I. Pressure field**

Materials made for Microhydrodynamics course with Maria Ekiel - Jeżewska.

Fundamental pressure solutions of Stokes equations in presence of a free boudary or rigid wall are constructed using the method of images. The subsequent steps of the construction are presented. [pdf]

**Fresnel and Fraunhofer Diffraction - a lecture experiment**

Patterns presenting a dynamic transition between Fresnel and Fraunhofer diffraction patterns using a moving diverging lens.
See the photographs and the preprint of our paper here:

Fresnel and Fraunhofer diffraction patterns