Visualization of a smoke flow field by using a lidar and DIC technique

被引：1

作者：

Park, Nak Gyu ^{[1
]}

Baik, Sung Hoon ^{[1
]}

Park, Seung Kyu ^{[1
]}

Kim, Dong Lyul ^{[1
]}

机构：

[1] Korea Atom Energy Res Inst, Div Quantum Opt, Taejon 34057, South Korea

来源：

JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2015年 / 67卷 / 10期

基金：

新加坡国家研究基金会;

关键词：

Lidar; Visualization; Velocity; Digital image correlation;

D O I：

10.3938/jkps.67.1726

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A visualization technique for the velocity field of plant smoke is described. We intend to present a long-range measurement method for a velocity field calculation from a series of images containing an illuminated planar layer of fluid. The main system is configured with two technical parts. One is a lidar system, which is for measuring the distance from an observer to the plant smoke, and the other is a DIC (digital image correlation) system. We configured the lidar system by using a Nd-YAG pulsed laser (10 Hz, injection seeded), a telescope (Schmidt Cassegrain type, diameter: 30 cm) and a PMT (photomultiplier tube). The DIC system is configured to track smoke images by using the developed fast correlation algorithm of the DIC. We acquired the velocity fields of smoke by using the calculated distance and the DIC algorithm. In this paper, we propose a new method for measuring the smoke velocity and visualizing the flow field.

引用

页码：1726 / 1731

页数：6

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