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:涡旋波流场的涡量测试与计算及特征参数的影响

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Date of Publication:2007-03-30

Journal:应用力学学报

Included Journals:PKU、ISTIC、CSCD

Volume:24

Issue:1

Page Number:6-10

ISSN No.:1000-4939

Key Words:涡旋波;涡量;振荡流;数值模拟;实验研究

Abstract:从实验和模拟计算两个方面,对涡旋波流场的速度矢量图和涡量进行了定量测试和综合分析,并对涡旋波流动与其特征影响参数之间的关系进行了研究.结果表明:涡旋波流动只在二维层流状态下产生,涡旋波形成后,Re数对旋涡尺寸的影响较小,涡量随Re数的增大而增大,但涡量不随时间的增加而单调增加.随着St数的减小,旋涡尺寸明显增大,涡量却随之减小.本文也对不同槽道内的涡旋波流场进行了数值模拟计算,进而确定了涡旋波流场的形成条件.

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