Deep field noise in holographic particle image velocimetry (HPIV): Numerical and experimental particle image field modelling

被引：9

作者：

Hinrichs, H ^{[1
]}

Hinsch, KD ^{[1
]}

Kickstein, J ^{[1
]}

Bohmer, M ^{[1
]}

机构：

[1] Carl von Ossietzky Univ, FB Phys 8, D-26111 Oldenburg, Germany

来源：

EXPERIMENTS IN FLUIDS | 1998年 / 24卷 / 04期

关键词：

Autocorrelation; Crosscorrelation; Particle Image Velocimetry; Model Image; Validation Rate;

D O I：

10.1007/s003480050180

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Holographic recording overcomes the limits in 2-D particle image velocimetry (PIV) to cover a 3-D flow field volume. Interrogation by focusing on single planes in a reconstructed particle field is disturbed by noise from out-of-focus particles. A numerical simulation models image reconstruction and shows how validation rates depend on aperture and volume depth. An experimental model environment of scattering particles in moveable plastic slices gives support to the numerical results. Simulations and tests are carried out for interrogation by autocorrelation and crosscorrelation techniques and furnish guidelines for system design.

引用

页码：333 / 339

页数：7

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