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首页 > 资料下载 > 立体显微PIV,波前形变显微PIV和标准显微PIV的测量不确定性比较研究

立体显微PIV,波前形变显微PIV和标准显微PIV的测量不确定性比较研究

发布时间: 2015-10-26 10:12 来源:北京欧兰科技发展有限公司
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下载地址2:立体显微PIV,波前形变显微PIV和标准显微PIV的测量不确定性比较研究


In this paper a comparative study is presented to assess the uncertainty of two methods for 3C3D velocimetry in microscopic flows: stereoscopic micro-particle image velocimetry (S-μPIV) and wavefront-deformation, or astigmatism, micro-particle tracking velocimetry (WD-μPTV). First, the main parameters affecting both methods’ measurement uncertainty are identified, described and quantified. Second, the test case of flow over a backward-facing step is analyzed using both methods. For comparison standard 2D-2C μPIV measurements and numerical flow simulations are shown as well. Advantages and disadvantages of both methods are discussed.

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