A Study on Quantitative Visualization and Measurement of Physical Properties of Radial Symmetric Fluids Using Electronic Speckle Pattern Interferometry

전자 스체클 패턴 간섭법을 이용한 반경방향 대칭 유체의 정량적 가시화 및 물성치 측정에 관한 연구

  • Published : 2002.02.01


It is very important to measure and visualize the changes in the physical properties of fluid flow because this is the foundation of measurement techniques used in aerodynamics, heat transfer, plasma diagnostics, and stress analysis of transparent models. The optical methods are advantageous over probe-based techniques in the optical methods are of high speed, non-contact and are capable of providing full-field results with high spatial resolution. Therefore we propose the electronic speckle pattern interferometry(ESPI) that gives us a solution to overcome those limitations. In this paper the experimental results show qualitative and quantitative visualization of changes in the physical properties of the candle and alcohol lamp with 3D plotting. And we obtained the refractive index, mass density and temperature distribution of fluids. The results clearly show the process of flow phenomena and give the feasibility of quantitative interpretation of gasdynamics.


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