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
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Paper Publications

用PIV测试涡旋波流场的速度和剪应力分布

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Indexed by:Journal Article

Date of Publication:2006-06-30

Journal:实验力学

Included Journals:CSCD、ISTIC、PKU

Volume:21

Issue:3

Page Number:278-284

ISSN:1001-4888

Key Words:振荡流;涡旋波;PIV;速度矢量;剪切应力

Abstract:采用PIV瞬态流场测试技术,对二维槽道中的涡旋波流场不同相位上的速度分布和应力分布进行了测试和计算,本文定量地描述了槽道中涡旋波的形成过程及发展规律.通过调整振荡流的振幅和活塞行程,分析了Re数和Sr数对涡旋波流动的影响,得出了槽道内剪应力的分布状况以及平均剪切应力的周期性变化规律.深入分析了涡旋波流场强化传递现象的本质.

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