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Numerical Investigation of Vortex-Induced Vibrations of a Rotating Cylinder near a Plane Wall

التفاصيل البيبلوغرافية
العنوان: Numerical Investigation of Vortex-Induced Vibrations of a Rotating Cylinder near a Plane Wall
المؤلفون: Ran Li, Jie Gong, Wei Chen, Jie Li, Wei Chai, Chang-kyu Rheem, Xiaobin Li
المصدر: Journal of Marine Science and Engineering, Vol 11, Iss 6, p 1202 (2023)
بيانات النشر: MDPI AG, 2023.
سنة النشر: 2023
المجموعة: LCC:Naval architecture. Shipbuilding. Marine engineering
LCC:Oceanography
مصطلحات موضوعية: VIV, rotating cylinder, wall effect, vortex suppression, 2DOF, Naval architecture. Shipbuilding. Marine engineering, VM1-989, Oceanography, GC1-1581
الوصف: Numerical simulations are carried out to investigate the vortex-induced vibrations of a two-degree-of-freedom (2DOF) near-wall rotating cylinder. Considering the effects of gap ratio, reduced velocity and rotational rate, the amplitude response, wake variations and fluid forces are analyzed, with the Reynolds number of 200 and the mass ratio set to 1.6. The correlative mechanism in the wake–hydrodynamics–vibration is revealed. The results show that the influence of the wall dominates the vortex-induced vibration of the cylinder. The effect of the wall on the vibration weakens as the gap ratio increases, and the effect of the wall on the vibration is negligible when H/D > 1.1. The forward rotation of the cylinder enhances the wall effect, while the backward rotation presents the reverse effect. The vortex-induced vibration of the cylinder is suppressed when 0 < α < 1, and the amplitude range is concentrated at Vr ∈ (3, 5). The wake mode can be divided into five modes, and the wake modes are clarified under different rotation rates and reduced velocities.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2077-1312
Relation: https://www.mdpi.com/2077-1312/11/6/1202; https://doaj.org/toc/2077-1312
DOI: 10.3390/jmse11061202
URL الوصول: https://doaj.org/article/2c11e1616e214da49b3c65aee35be0b6
رقم الأكسشن: edsdoj.2c11e1616e214da49b3c65aee35be0b6
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:20771312
DOI:10.3390/jmse11061202