• Three-dimensional instantaneous velocity field measurement using digital holography microscope

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    • Keywords


      Holography; velocity measurements; laminar flow in microchannel.

    • Abstract


      In the present study, a digital holography microscope has been developed to study instantaneous 3D velocity field in a square channel of 1000 × 1000 $\mu𝑚^2$ cross-section. The flow field is seeded with polystyrene microspheres of size $d_p = 2.1$ 𝜇m. The volumetric flow rate is set equal to 20 𝜇l/min. The instantaneous 3D velocity field is obtained by correlating the particles obtained from the 3D numerical reconstruction of holograms using particle tracking velocimetry (PTV).

    • Author Affiliations


      Dhananjay Kumar Singh1 P K Panigrahi1 2

      1. Department of Mechanical Engineering, Indian Institute of Technology, Kanpur 208 016, India
      2. Centre for Lasers and Photonics, Indian Institute of Technology, Kanpur 208 016, India
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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