Three-dimensional instantaneous velocity field measurement using digital holography microscope

Pramana

P K Panigrahi1¹  Dhananjay Kumar Singh1¹ 

[1] Department of Mechanical Engineering, Indian Institute of Technology, Kanpur 208 016, India$$

关键词: Holography;    velocity measurements;    laminar flow in microchannel.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

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).

【 授权许可】

Unknown