Particle tracking velocimetry beneath water waves. Part I: visualization and tracking algorithms

被引：18

作者：

Hering, F

Leue, C

Wierzimok, D

Jahne, B

机构：

[1] Univ Heidelberg, Interdisziplinares Zentrum Wissensch Rechnen, D-69120 Heidelberg, Germany

[2] Univ Heidelberg, Inst Umweltphys, D-69120 Heidelberg, Germany

[3] IBM Germany, Inst Supercomp & Appl Math, D-69120 Heidelberg, Germany

[4] Univ Calif San Diego, Scripps Inst Oceanog, Phys Oceanog Res Div, La Jolla, CA 92093 USA

来源：

EXPERIMENTS IN FLUIDS | 1997年 / 23卷 / 06期

关键词：

Flow Field; Tracking System; Velocimetry; Wave Period; Water Wave;

D O I：

10.1007/s003480050137

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A novel particle tracking system working with a high particle concentration for the measurement of flow fields beneath water waves is described. It features a 1-4 cm thick light sheet parallel to the main wave propagation direction so that the seeding particles stay long enough in the illuminated area to enable tracking over several wave periods. An area of up to 14.0 x 10.0 cm(2) is observed by a CCD camera with up to 200 fields/s. The polychromatic scattering theory of small particles in a light sheet illumination is investigated, enabling the segmentation of individual particles at high particle concentration.

引用

页码：472 / 482

页数：11

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