Liu Fengxia   

Associate Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates

Title : 化工机械与安全实验室副主任

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Language:English

Paper Publications

Title of Paper:应用PIV技术测试涡旋波流场

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Date of Publication:2006-10-30

Journal:实验力学

Included Journals:PKU、ISTIC、CSCD

Volume:21

Issue:5

Page Number:611-616

ISSN No.:1001-4888

Key Words:PIV;涡旋波;速度矢量;涡量

Abstract:涡旋波流动作为一种特殊的流动现象,可以使流体在相对较宽的槽道中产生较强的波动和对流混合,从而在小 Re  数条件下起到强化传质的效果.本文利用PIV流场显示技术,对振荡流在非对称槽道中所形成的涡旋波的产生机理和发展规律进行了实验研究和定量分析,测得了涡旋波流场的速度矢量图,阐明了涡旋波流场周期性变化的特点.分析了 Re 数和St  数对涡旋波流动的影响,并得出了旋涡涡心位置以及涡心处涡量的动态变化规律.

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