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个人信息Personal Information
教授
博士生导师
硕士生导师
性别:男
毕业院校:广岛大学
学位:博士
所在单位:船舶工程学院
学科:船舶与海洋结构物设计制造. 水声工程. 计算力学
办公地点:A1区21号,船池317
联系方式:zongzhi@dlut.edu.cn
电子邮箱:zongzhi@dlut.edu.cn
基于IVCBC涡方法高雷诺数下串联双圆柱的数值计算模型及其尾流特征研究
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发表时间:2022-10-10
发表刊物:船舶力学
卷号:21
期号:10
页面范围:1181-1189
ISSN号:1007-7294
摘要:Based on the characteristic of two circular cylinders in tandem, the numerical computation model under high Reynolds number was established with the characteristics that IVCBC vortex method suits for computing under high Reynolds number. The convergence of IVCBC vortex method was validated by the classical cases. Wake characteristics of double circular cylinders were investingated under Reynolds num-ber 2.5×104 and gap ratios 1.1, 1.25, 2, 2.5, 3, 3.25 and 4. Generation, split and merger of small vortex in wake were shown clearly. The reason of wake mutation and characteristics of flow around two circular cylin-ders in tandem was explained detailedly. The study shows that wake models are in good agreement with that of classical experimental model, and the vortex pair between two cylinders is the main reason of wake mu-taion. At small gap ratios, formation of the small vortex on top of gap and the vibration of flow inside gap is cynchronization with shedding of vortex on the surface of downstream cylinder. It is large advantages of the simulation model compared with the grid methods because the simulation model can show the small vortex in wake. It provides an important tool to study further the characteristics of flow force of double cylin-ders in tandem.
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