Wall shear stress measurements using a MTV-based plenoptic microscope

We present instantaneous measurements of the three dimensional velocity field containing two wall parallel velocity components (3D-2C) in an axisymmetric stagnation jet flow. This well known flow is chosen to benchmark the novel velocimetry technique presented herein where Molecular Tagging Velocimetry is used in conjunction with a Fourier Integral Microscope to obtain 3D-2C measurements with a single camera. The experiments herein utilize the Richardson Lucy Deconvolution algorithm to obtain voxels with 2 um and 33 um lateral and axial resolutions, respectively.