Three-dimensional Visualization of Hydrogen Bubble Method by means of Digital Holography Using Two-wavelength Reconstruction

Yohsuke TANAKA; Shigeru MURATA

doi:10.11395/jjsem.12.s121

research-article

Three-dimensional Visualization of Hydrogen Bubble Method by means of Digital Holography Using Two-wavelength Reconstruction

Yohsuke TANAKA, Shigeru MURATA

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Keywords: Hydrogen Bubble Method, Digital Holography, Two-wavelength Reconstruction, Wake of a Circular Cylinder, Three-dimensional Visualization, Flow Visualization Technique

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2012 Volume 12 Issue Special_Issue Pages s121-s125

DOI https://doi.org/10.11395/jjsem.12.s121

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Abstract

This study proposes a three-dimensional (3D) visualization method that is combined with the hydrogen bubble method (HBM) and digital in-line holography using two-wavelength reconstruction. In this method, the 3D distribution of hydrogen bubbles generated by HBM is measured by digital holography. Vortex shedding from a circular cylinder is observed in an open channel. 3D flow structures of the cylinder wake are successfully visualized.

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