Virtual wind tunnel with pykitPIV

The graph below shows the five main classes of pykitPIV which allow for building a 2D virtual wind tunnel:

../_images/pykitPIV-virtual-wind-tunnel.svg

  • The class Particle can be used to initialize particle properties and particle positions on an image.

  • The class FlowField can be used to create a velocity field to advect the particles. It is also used to set the time separation between images and compute displacement fields. A variety of challenging flow fields can be generated with this class.

  • The class Motion takes an object of class Particle and applies an object of class FlowField to it to advect the particles.

  • The class Image can be used to apply laser and camera properties on any standalone image, as well as on a series of images of advected particles. This class essentially generates an image pair tensor, \(\mathbf{I} = (I_1, I_2)^{\top}\), at time \(t_1\) and \(t_2 = t_1 + \Delta t\) respectively, where \(\Delta t\) denotes the time separation between two images.

  • The class Postprocess can be used to postprocess a single image or a series of images.

At each stage, the user can enforce reproducible image generation through fixing random seeds.