Experimental Studies of Two-Phase Round Turbulent Jet Coherent Structures

首页> 中文期刊> 《清华大学学报（英文版）》 >Experimental Studies of Two-Phase Round Turbulent Jet Coherent Structures

Experimental Studies of Two-Phase Round Turbulent Jet Coherent Structures

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

Coherent structures of a two-phase round turbulent jet have been studied experimentally. The flow profiles at different Reynold's numbers and various positions from the jet exit are visualized using a sheet laser source. The jets include two types,an air jet laden with incense smoke and an air jet laden with two kinds of solid particles, glass beads and catalytic cracking beads. The developments of both the large eddy structures of the round turbulent jet and the local particle dispersion in the vortex structures were recorded with a high-speed movie camera. Free and excited jet conditions were tested. Analysis of the video pictures suggests a critical intrinsic frequency exists in the helical coherent structures of the air phase. In the spectral space the clockwise and counter-clockwise helical structures occupy different positions. Large scale structures exsit in the two-phase jet. The patterns are similar to those of the air jet with the Stokes numbers in the range of 1-8.32.

著录项

来源
《清华大学学报（英文版）》 |2000年第1期|105-108|共4页
作者

展开▼
作者单位

Department of Engineering Mechanics,Tsinghua University,Beijing 100084,China;

Department of Engineering Mechanics,Tsinghua University,Beijing 100084,China;

Department of Engineering Mechanics,Tsinghua University,Beijing 100084,China;

Department of Engineering Mechanics,Tsinghua University,Beijing 100084,China;

Department of Engineering Mechanics,Tsinghua University,Beijing 100084,China;

展开▼
原文格式 PDF
正文语种 chi
中图分类海洋学;
关键词
coherent structure; flow visualization; two-phase flow; jet; particle-turbulence interaction;

机译：相干结构;流动可视化;两相流;射流;颗粒-湍流相互作用;

Experimental Studies of Two-Phase Round Turbulent Jet Coherent Structures

摘要

著录项

相关主题

期刊订阅