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Three-dimensional instantaneous velocity field measurement using digital holography microscope

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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 μm2 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).

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Authors and Affiliations

  1. Department of Mechanical Engineering, Indian Institute of Technology, Kanpur, 208 016, India

    DHANANJAY KUMAR SINGH & P K PANIGRAHI

  2. Centre for Lasers and Photonics, Indian Institute of Technology, Kanpur, 208 016, India

    P K PANIGRAHI

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  1. DHANANJAY KUMAR SINGH
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  2. P K PANIGRAHI
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Correspondence to DHANANJAY KUMAR SINGH.

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SINGH, D.K., PANIGRAHI, P.K. Three-dimensional instantaneous velocity field measurement using digital holography microscope. Pramana - J Phys 82, 439–444 (2014). https://doi.org/10.1007/s12043-014-0703-z

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  • DOI: https://doi.org/10.1007/s12043-014-0703-z

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