Numerical simulation of flow around a cylinder under different reynolds number

Qiang Liu, Wei Xie, Wen Yang Duan, Chang Hong Hu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Based on fully structured grids parallel numerical simulations of flow around a cylinder under different Reynolds number are carried out. Two-dimensional and three-dimensional models are established at the same time under specific Reynolds number, and further analyze of three-dimensional flow characteristics as well as the generated influence to overall physical quantities are presented. In order to explore efficient high Reynolds number turbulence models, a comparative research of the LES model without wall functions and the Spalart-Allmaras turbulence model is carried out. In order to improve the computational efficiency, a domain decomposition parallel computing strategy is used, and a calculation strategy that results of coarse grid was assigned to fine grid as initial field value by 3D linear interpolation is presented. Simulation results show that: Drag coefficient and Strouhal number have very good consistency with the experimental data, which verifies the correctness of the calculation method; Even if at low Reynolds number (200≤Re≤300), using a three-dimensional model is still necessary; While in the high Reynolds number stage, compared to LES model without wall functions, Spalart-Allmaras model is more applicable and more efficient.

Original languageEnglish
Title of host publicationVehicle, Mechatronics and Information Technologies II
PublisherTrans Tech Publications
Pages434-440
Number of pages7
ISBN (Print)9783038350606
DOIs
Publication statusPublished - Jan 1 2014
EventInternational Conference on Vehicle and Mechanical Engineering and Information Technology, VMEIT 2014 - Beijing, China
Duration: Feb 19 2014Feb 20 2014

Publication series

NameApplied Mechanics and Materials
Volume543-547
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Other

OtherInternational Conference on Vehicle and Mechanical Engineering and Information Technology, VMEIT 2014
CountryChina
CityBeijing
Period2/19/142/20/14

Fingerprint

Reynolds number
Computer simulation
Wall function
Turbulence models
Strouhal number
Drag coefficient
Parallel processing systems
Computational efficiency
Interpolation
Decomposition

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Liu, Q., Xie, W., Duan, W. Y., & Hu, C. H. (2014). Numerical simulation of flow around a cylinder under different reynolds number. In Vehicle, Mechatronics and Information Technologies II (pp. 434-440). (Applied Mechanics and Materials; Vol. 543-547). Trans Tech Publications. https://doi.org/10.4028/www.scientific.net/AMM.543-547.434

Numerical simulation of flow around a cylinder under different reynolds number. / Liu, Qiang; Xie, Wei; Duan, Wen Yang; Hu, Chang Hong.

Vehicle, Mechatronics and Information Technologies II. Trans Tech Publications, 2014. p. 434-440 (Applied Mechanics and Materials; Vol. 543-547).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Liu, Q, Xie, W, Duan, WY & Hu, CH 2014, Numerical simulation of flow around a cylinder under different reynolds number. in Vehicle, Mechatronics and Information Technologies II. Applied Mechanics and Materials, vol. 543-547, Trans Tech Publications, pp. 434-440, International Conference on Vehicle and Mechanical Engineering and Information Technology, VMEIT 2014, Beijing, China, 2/19/14. https://doi.org/10.4028/www.scientific.net/AMM.543-547.434
Liu Q, Xie W, Duan WY, Hu CH. Numerical simulation of flow around a cylinder under different reynolds number. In Vehicle, Mechatronics and Information Technologies II. Trans Tech Publications. 2014. p. 434-440. (Applied Mechanics and Materials). https://doi.org/10.4028/www.scientific.net/AMM.543-547.434
Liu, Qiang ; Xie, Wei ; Duan, Wen Yang ; Hu, Chang Hong. / Numerical simulation of flow around a cylinder under different reynolds number. Vehicle, Mechatronics and Information Technologies II. Trans Tech Publications, 2014. pp. 434-440 (Applied Mechanics and Materials).
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